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anonymous
 5 years ago
I need help, simplistically, step by step how to solve 4x+6y8z=1
anonymous
 5 years ago
I need help, simplistically, step by step how to solve 4x+6y8z=1

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you must be missing some imformation... solve for a variable or what? we cannot solve with just that information given

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0there is no step to solve it

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.03 variables needs 3 equations..or is it 4 equations? its 3

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0maybe all 3 together? 1) 4x+6y8z=1 2) 6x9y+12z=0 3) x2y2z=3

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I still need help as simple as possible to solve it, I'm not good at math and don't remem ber how please

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0first thing you need to do, is use the three equations to solve for a certain value of eachother, this is done by solving for a variable, then substituting

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i would start with number 3, we can say that x2y2z=3 can be rewritten as x=3+2y+2z (moved em all over to make x alone

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0put it in a matrix calculator =p

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so now you have what x is, you can then put that in for the other equations: 1)4(3+2y+2z)+6y8z=1 2) 6(3+2y+2z)9y+12z=0

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0... matricies would be easier, if you know how to do them?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I don't know, I haven't attempted to do this kind of math in over 15 years

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the concept of matrices is a bit intuitive, if you want a shortcut to just the answer, a calculator would do it, if you need to know how to get it then ill continue algebraically

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how do you know what x is when y and z are still unknowns?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0please, if you don't mind

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0we dont technically know x, but we know how to phrase x in terms of y and z, this way we can put that into the other equations as i did here: 1) 4(3+2y+2z)+6y8z=1 2) 6(3+2y+2z)9y+12z=0

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0see how i first figured out (with equation 3) that x = 3+2y+2z... then put that new equation in for x in the other two equations? this way we no longer have three variables, we have two!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Oh okay I understand how you came up with 1 and 2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the goal is to solve for only one variable at a time, then find the other two after that

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0x =3+2y+2z 4(3+2y+2z) +6y8z =1 > 12+8y+8z+6y8z=1 > 14y= 11 > y = 11/14 x =3+2y+2z > x= 3+2(11/14)+2z > x= (311/7)+2z x= (10/7)+2z 6x9y+12z=0> 6(10/7)+2z9(11/14)+12z=0 > 60/7 + 99/14 +14z=0 > (120+99)/14 +14z=0 > z = (21/14)/14 z= ........ u got y and z, and plug in to x =3+2y+2z, u get x

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ummm...I need help again, how does 12+8y+8z+6y8z=1 become 14y=11? I understand that when you multiple a positive with a negative it become positive, and I understand that 8z8z cancels each other out, but then wouldn't it become 12+14y=1?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0OOOOOH nm, I get it, 12+14y=1 becomes 14y=112

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how does 3+2(11/14) become 311/7?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.014:2 = 7 > 3 +  11/7 > 311/7

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I'm sorry, I still don't understand how you come up with that. why does 2 do something with 14 and not 11?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.02(11/14)= 22/14 = 11/7, if u want it stay 22/14 that is ok
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