Alejandrox Alejandrox

09-02-2015
Mathematics

contestada

What's the answer for is substitution
Y=-2
4x-3y=18

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kaylagrlz12 kaylagrlz12

09-02-2015

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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