4x+y=-2 4x+3y=-12,now bothe are the same problem and both x's have to carry the same # and bothe y's as well.

Question

THIS IS HOW THE PROBLEM ACTUALLY IS PLACED....... 4X+Y=-2. and below it is... 4X+3Y=-12 how is it that i can go about solving it and get the right answer?thanks MC

Answer 1

- 4x - y = 2
4x + 3y = - 12-----ADD

2y = - 10
y = - 5

4x - 5 = - 2
4x = 3
x = 3/4

x = 3/4 , y = - 5

Answer 2

4x + y = -2
4x + 3y = -12

Solve a simple system of equations like this by eliminating a variable. We can subtract the second equation from the first to eliminate 4x:

-2y = 10
So y = -5

Plugging this in the first equation,
4x + (-5) = -2
So x = 3/4