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25x+21=-15(8x-25)-2
We move all terms to the left:
25x+21-(-15(8x-25)-2)=0
We calculate terms in parentheses: -(-15(8x-25)-2), so:We get rid of parentheses
-15(8x-25)-2
We multiply parentheses
-120x+375-2
We add all the numbers together, and all the variables
-120x+373
Back to the equation:
-(-120x+373)
25x+120x-373+21=0
We add all the numbers together, and all the variables
145x-352=0
We move all terms containing x to the left, all other terms to the right
145x=352
x=352/145
x=2+62/145
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