7y-4y=-12

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Solution for 7y-4y=-12 equation: 



7y-4y=-12

We move all terms to the left:

7y-4y-(-12)=0

We add all the numbers together, and all the variables

3y+12=0

We move all terms containing y to the left, all other terms to the right

3y=-12

y=-12/3

y=-4

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