13+4x-9=7x+7=-3

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Solution for 13+4x-9=7x+7=-3 equation: 



13+4x-9=7x+7=-3

We move all terms to the left:

13+4x-9-(7x+7)=0

We add all the numbers together, and all the variables

4x-(7x+7)+4=0

We get rid of parentheses

4x-7x-7+4=0

We add all the numbers together, and all the variables

-3x-3=0

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

-3x=3

x=3/-3

x=-1

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