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0.13x+0.3(x-4)=0.01(3x-7)
We move all terms to the left:
0.13x+0.3(x-4)-(0.01(3x-7))=0
We multiply parentheses
0.13x+0.3x-(0.01(3x-7))-1.2=0
We calculate terms in parentheses: -(0.01(3x-7)), so:We add all the numbers together, and all the variables
0.01(3x-7)
We multiply parentheses
0.03x-0.07
Back to the equation:
-(0.03x-0.07)
0.43x-(0.03x-0.07)-1.2=0
We get rid of parentheses
0.43x-0.03x+0.07-1.2=0
We add all the numbers together, and all the variables
0.4x-1.13=0
We move all terms containing x to the left, all other terms to the right
0.4x=1.13
x=1.13/0.4
x=2+0.33/0.4
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