anonymous
  • anonymous
Algebra 1 Questions
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1362811330173:dw|
johnweldon1993
  • johnweldon1993
so you add 4 to both sides....now you have x/3 = 15 multiply both sides by 3 which leave x = 45 now check....45/3? is 15...- 4 = 11 so yes
anonymous
  • anonymous
I have 10 more questions is that ok

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johnweldon1993
  • johnweldon1993
Yeah sure....I'm about to sign off inna few mins but anyone else can see this so they'll be able to help
anonymous
  • anonymous
k
anonymous
  • anonymous
|dw:1362811654721:dw|
johnweldon1993
  • johnweldon1993
Okay so combine like terms 2x - 4x = -2x 1 - 9 = -8 so we have -2x - 8 =12 now add 8 to both sides -2x = 20 x = -10
anonymous
  • anonymous
|dw:1362811807180:dw|
anonymous
  • anonymous
will it be 8x-6
kropot72
  • kropot72
@@lvasquev462 Do you want me to help you through the method of solution?
anonymous
  • anonymous
yes please
kropot72
  • kropot72
3(x - 3) = 5(x + 3) First remove the brackets on each side by multiplying each term inside the brackets by the term outside the brackets. Can you do that?
anonymous
  • anonymous
yes 3x- 9 = 5x - 15
anonymous
  • anonymous
+15 i mean
kropot72
  • kropot72
Good work! So now we have: 3x - 9 = 5x + 15 Now subtract 3x from both sides. Can you do that?
anonymous
  • anonymous
luhm i get lost right here can u help me please
kropot72
  • kropot72
What is the result of subtracting 3x from 3x; 3x - 3x = ?
anonymous
  • anonymous
0 ?
kropot72
  • kropot72
Correct! So now when we subtract 3x from both sides of 3x - 9 = 5x + 15 we get -9 = 5x - 3x + 15 What happens to the right hand side when you combine the two terms in x?
kropot72
  • kropot72
5x - 3x = ?x
anonymous
  • anonymous
2x right
anonymous
  • anonymous
i got 17 = x if i skip ahead will tht be correct
kropot72
  • kropot72
Correct again! Our equation has now become -9 = 2x + 15 Next step is to subtract 15 from both sides to get the term in x all by itself on the right hand side. Can you do that?
anonymous
  • anonymous
-12
kropot72
  • kropot72
Sorry x = 17 is not correct. Please continue with the method I am showing you :)
anonymous
  • anonymous
15 minus 9 is -24
kropot72
  • kropot72
Well -15 - 9 = -24 sure enough. So we have -24 = 2x And x = -24/2 = ?
anonymous
  • anonymous
-12
kropot72
  • kropot72
Correct. The solution is x = -12.
anonymous
  • anonymous
thanks dude i appreciate your help

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