-3x-13=-7x+15;x=-7

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Solution for -3x-13=-7x+15;x=-7 equation: 



-3x-13=-7x+15x=-7

We move all terms to the left:

-3x-13-(-7x+15x)=0

We add all the numbers together, and all the variables

-3x-(+8x)-13=0

We get rid of parentheses

-3x-8x-13=0

We add all the numbers together, and all the variables

-11x-13=0

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

-11x=13

x=13/-11

x=-1+2/11

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