2x+(x+3)=20

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



2x+(x+3)=20

We move all terms to the left:

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

We get rid of parentheses

2x+x+3-20=0

We add all the numbers together, and all the variables

3x-17=0

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

3x=17

x=17/3

x=5+2/3

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