7x-8x=12-5

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Solution for 7x-8x=12-5 equation: 



7x-8x=12-5

We move all terms to the left:

7x-8x-(12-5)=0

We add all the numbers together, and all the variables

7x-8x-7=0

We add all the numbers together, and all the variables

-1x-7=0

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

-x=7

x=7/-1

x=-7

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