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2=77-2x
We move all terms to the left:
2-(77-2x)=0
We add all the numbers together, and all the variables
-(-2x+77)+2=0
We get rid of parentheses
2x-77+2=0
We add all the numbers together, and all the variables
2x-75=0
We move all terms containing x to the left, all other terms to the right
2x=75
x=75/2
x=37+1/2
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