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What's the answer for is substitution
Y=-2
4x-3y=18
First you plug the y into the equation you are substituting it into, this gives you 4x-3(-2)=18 multiply the -3 by the -2 to get 4x+6=18 Subtract the 6 from both sides to get 4x=12 Finally divide by 4 to get x=3
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