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2.5(2x+4)-3=5(4-x)+12
We move all terms to the left:
2.5(2x+4)-3-(5(4-x)+12)=0
We add all the numbers together, and all the variables
2.5(2x+4)-(5(-1x+4)+12)-3=0
We multiply parentheses
5x-(5(-1x+4)+12)+10-3=0
We calculate terms in parentheses: -(5(-1x+4)+12), so:We add all the numbers together, and all the variables
5(-1x+4)+12
We multiply parentheses
-5x+20+12
We add all the numbers together, and all the variables
-5x+32
Back to the equation:
-(-5x+32)
5x-(-5x+32)+7=0
We get rid of parentheses
5x+5x-32+7=0
We add all the numbers together, and all the variables
10x-25=0
We move all terms containing x to the left, all other terms to the right
10x=25
x=25/10
x=2+1/2
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