7x+8x=-13+3x-x

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Solution for 7x+8x=-13+3x-x equation: 



7x+8x=-13+3x-x

We move all terms to the left:

7x+8x-(-13+3x-x)=0

We add all the numbers together, and all the variables

7x+8x-(2x-13)=0

We add all the numbers together, and all the variables

15x-(2x-13)=0

We get rid of parentheses

15x-2x+13=0

We add all the numbers together, and all the variables

13x+13=0

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

13x=-13

x=-13/13

x=-1

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