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0.20(x-7)+0.12x=0.18x-0.07(30)
We move all terms to the left:
0.20(x-7)+0.12x-(0.18x-0.07(30))=0
We add all the numbers together, and all the variables
0.20(x-7)+0.12x-(0.18x-0.073)=0
We add all the numbers together, and all the variables
0.12x+0.20(x-7)-(0.18x-0.073)=0
We multiply parentheses
0.12x+0.2x-(0.18x-0.073)-1.4=0
We get rid of parentheses
0.12x+0.2x-0.18x+0.073-1.4=0
We add all the numbers together, and all the variables
0.14x-1.327=0
We move all terms containing x to the left, all other terms to the right
0.14x=1.327
x=1.327/0.14
x=9+0.067/0.14
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