12x+(x+13)=15x-5

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Solution for 12x+(x+13)=15x-5 equation: 



12x+(x+13)=15x-5

We move all terms to the left:

12x+(x+13)-(15x-5)=0

We get rid of parentheses

12x+x-15x+13+5=0

We add all the numbers together, and all the variables

-2x+18=0

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

-2x=-18

x=-18/-2

x=+9

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