7x-12=15x=4

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Solution for 7x-12=15x=4 equation: 



7x-12=15x=4

We move all terms to the left:

7x-12-(15x)=0

We add all the numbers together, and all the variables

-8x-12=0

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

-8x=12

x=12/-8

x=-1+1/2

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