57+2x=15

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Solution for 57+2x=15 equation:



57+2x=15
We move all terms to the left:
57+2x-(15)=0
We add all the numbers together, and all the variables
2x+42=0
We move all terms containing x to the left, all other terms to the right
2x=-42
x=-42/2
x=-21

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