7+8=13-3x

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



7+8=13-3x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

3x-13+15=0

We add all the numbers together, and all the variables

3x+2=0

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

3x=-2

x=-2/3

x=-2/3

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