5+3(1x+7)=20

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Solution for 5+3(1x+7)=20 equation: 



5+3(1x+7)=20

We move all terms to the left:

5+3(1x+7)-(20)=0

We add all the numbers together, and all the variables

3(x+7)+5-20=0

We add all the numbers together, and all the variables

3(x+7)-15=0

We multiply parentheses

3x+21-15=0

We add all the numbers together, and all the variables

3x+6=0

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

3x=-6

x=-6/3

x=-2

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