13x-(7x-9)=15

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



13x-(7x-9)=15

We move all terms to the left:

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

We get rid of parentheses

13x-7x+9-15=0

We add all the numbers together, and all the variables

6x-6=0

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

6x=6

x=6/6

x=1

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