7x-8x=13-15

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Solution for 7x-8x=13-15 equation: 



7x-8x=13-15

We move all terms to the left:

7x-8x-(13-15)=0

We add all the numbers together, and all the variables

7x-8x-(-2)=0

We add all the numbers together, and all the variables

-1x+2=0

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

-x=-2

x=-2/-1

x=+2

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