3(x+1)+7(x+3)=74

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Solution for 3(x+1)+7(x+3)=74 equation: 



3(x+1)+7(x+3)=74

We move all terms to the left:

3(x+1)+7(x+3)-(74)=0

We multiply parentheses

3x+7x+3+21-74=0

We add all the numbers together, and all the variables

10x-50=0

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

10x=50

x=50/10

x=5

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