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25+x=30-2x
We move all terms to the left:
25+x-(30-2x)=0
We add all the numbers together, and all the variables
x-(-2x+30)+25=0
We get rid of parentheses
x+2x-30+25=0
We add all the numbers together, and all the variables
3x-5=0
We move all terms containing x to the left, all other terms to the right
3x=5
x=5/3
x=1+2/3
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