Question

Solve the following system of equations by using the elimination method.

x – 4y = 17

3x + 4y = 3

Answer 1

Ok, add them together, the y will eliminate.

Answer 2

times the first equation by 3 to get 3x.

Answer 3

then solve for x.

Answer 4

equation 1) x-4y=17 (times 3)
3x-12y=51
equation 2) 3x + 4y = 3

now solve for y by minusing 3x-3x=0 and when you get the x-value substitute it back into either equations to get the y value.