(3x+21)+(2x-6)=13

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Solution for (3x+21)+(2x-6)=13 equation: 



(3x+21)+(2x-6)=13

We move all terms to the left:

(3x+21)+(2x-6)-(13)=0

We get rid of parentheses

3x+2x+21-6-13=0

We add all the numbers together, and all the variables

5x+2=0

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

5x=-2

x=-2/5

x=-2/5

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