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0.5x-0.2(40+x)=0.1(40)
We move all terms to the left:
0.5x-0.2(40+x)-(0.1(40))=0
We add all the numbers together, and all the variables
0.5x-0.2(x+40)-(0.14)=0
We add all the numbers together, and all the variables
0.5x-0.2(x+40)-0.14=0
We multiply parentheses
0.5x-0.2x-8-0.14=0
We add all the numbers together, and all the variables
0.3x-8.14=0
We move all terms containing x to the left, all other terms to the right
0.3x=8.14
x=8.14/0.3
x=27+0.04/0.3
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