What is the solution of the system of equations?
somebody please help. can someone show me work?
3x+2y+z= 7
5x+5y+4z=3
3x+2y+3z=1

- anonymous

- jamiebookeater

See more answers at brainly.com

At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this

and **thousands** of other questions

- jhonyy9

how you need to solve it with sustitution method or elimination method ?

- anonymous

I found z by using the equations 1 and 3 and it doesnt tell i need help with x and y

- jhonyy9

ok i see it you can get the value of z using first end 3rd equation so how and how many you have got for z ?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

- anonymous

i got z=-3 and i know the answer for y is -1 and x is 4 but i dont know how to get them

- jhonyy9

yes z=-3 is right sure so than this value of z=-3 you can using there in first and second equation
so than what will get if you us this value of z there ?
what will get for first equation and what for second ?

- anonymous

wait how would set the up?

- anonymous

this?

- jhonyy9

3x+2y-3=7
5x+5y+4*(-3)=3
so can you make the calcule here ?

- jhonyy9

courage this is easy

- anonymous

how do you figure this out? i feel like an idiot right now

- jhonyy9

in the first equation assun to both sides 3 and will get how many ?
so and for second equation multiplie 4 by (-3) and will get how many ?

- jhonyy9

so you dont wann making the calcules here for ?

- anonymous

-12 for the second equation?

- jhonyy9

but how will be firstly the first equation ?

- jhonyy9

3x+2y=10 do you understand how i have got this result ?

- anonymous

oh okay! you added plus three to the 7? and so the 3 crosses out then?

- jhonyy9

yes sure
so than how you get the second equation ?

- anonymous

5x+5y-12=-9

- jhonyy9

equal 3 and not -9

- anonymous

okay so what do i do after that?

- jhonyy9

so will get
5x+5y-12=3 so now add to both sides 12 and will get ????

- anonymous

5x+5y=15

- jhonyy9

yes so now there are two equation
3x+2y=10
5x+5y=15
yes ?

- jhonyy9

ok ?

- anonymous

okay! got it so far

- jhonyy9

can you solve these system for x and y ?

- anonymous

yeah let me work it out

- anonymous

ok now im confused

- jhonyy9

3x+2y=10
5x+5y=15
so first of all how do you see what can you factorizing out in the second equation ?

- anonymous

15?

- jhonyy9

why 15 ? and why not just 5 ???

- anonymous

5

- jhonyy9

yes 5 right so than how will be the second equation ?

- anonymous

im sorry what do you mean?

- jhonyy9

5x+5y=15 i have wrote above that you can factorizing out the 5 from the both sides but i mean that you can divide both sides by 5 and so will get
5x+5y=15 /5
x+y=3
ok ?

- anonymous

okay i see what your ssaying

- jhonyy9

so than now there are
3x+2y=10
x+y=3
can you solve it now ?

- anonymous

what will you solve first the x or y? do you need to get rid of one?

- anonymous

i got it! i got the answr for y! y=-1

- jhonyy9

how ?

- jhonyy9

3x+2y=10
x+y=3 --- y=3-x than this substitute in place of y in the first equation
3x+2(3-x)=10
3x+6-2x=10
x+6=10
x=10-6
x=4
ok ?

- anonymous

ah thats why i just for x! i get it thank you!

- jhonyy9

so than
4 +y=3
y=3-4
y=-1
so than result that you have got it right
ok ?

- anonymous

yup! thats what i did, thank you so much

- jhonyy9

was my pleasure
yw
good luck
bye

Looking for something else?

Not the answer you are looking for? Search for more explanations.