2x+x+(x-3)=57

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Solution for 2x+x+(x-3)=57 equation: 



2x+x+(x-3)=57

We move all terms to the left:

2x+x+(x-3)-(57)=0

We add all the numbers together, and all the variables

3x+(x-3)-57=0

We get rid of parentheses

3x+x-3-57=0

We add all the numbers together, and all the variables

4x-60=0

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

4x=60

x=60/4

x=15

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