2s-56=-s+21

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Solution for 2s-56=-s+21 equation: 



2s-56=-s+21

We move all terms to the left:

2s-56-(-s+21)=0

We add all the numbers together, and all the variables

2s-(-1s+21)-56=0

We get rid of parentheses

2s+1s-21-56=0

We add all the numbers together, and all the variables

3s-77=0

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

3s=77

s=77/3

s=25+2/3

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