3(x+2x)+4=20

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Solution for 3(x+2x)+4=20 equation: 



3(x+2x)+4=20

We move all terms to the left:

3(x+2x)+4-(20)=0

We add all the numbers together, and all the variables

3(+3x)+4-20=0

We add all the numbers together, and all the variables

3(+3x)-16=0

We multiply parentheses

9x-16=0

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

9x=16

x=16/9

x=1+7/9

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