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4.2+1.1x=2(0.5x-1.5)
We move all terms to the left:
4.2+1.1x-(2(0.5x-1.5))=0
We calculate terms in parentheses: -(2(0.5x-1.5)), so:We get rid of parentheses
2(0.5x-1.5)
We multiply parentheses
0x-3
We add all the numbers together, and all the variables
x-3
Back to the equation:
-(x-3)
1.1x-x+3+4.2=0
We add all the numbers together, and all the variables
0.1x+7.2=0
We move all terms containing x to the left, all other terms to the right
0.1x=-7.2
x=-7.2/0.1
x=-72
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