7x-9x=15-13

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Solution for 7x-9x=15-13 equation: 



7x-9x=15-13

We move all terms to the left:

7x-9x-(15-13)=0

We add all the numbers together, and all the variables

7x-9x-2=0

We add all the numbers together, and all the variables

-2x-2=0

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

-2x=2

x=2/-2

x=-1

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