(X+7)+3x=19

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Solution for (X+7)+3x=19 equation: 



(X+7)+3X=19

We move all terms to the left:

(X+7)+3X-(19)=0

We add all the numbers together, and all the variables

3X+(X+7)-19=0

We get rid of parentheses

3X+X+7-19=0

We add all the numbers together, and all the variables

4X-12=0

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

4X=12

X=12/4

X=3

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