Answer:
-5
Explanation:
4x+y=2(x+3y)
plug in -2 for y: 4x+(-2)=2(x+3(-2))
solve: 4x-2=2x-12
subtract 2x from each side: 4x(-2x)-2=2x(-2x)-12
2x-2=-12
add 2 to each side: 2x-2(+2)=-12(+2)
2x=-10
divide both sides by 2: 2x(/2)=10(/2)
x=-5
x = -5
Hope this helps.
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