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0.2(x+50)-0.08(x-60)=10
We move all terms to the left:
0.2(x+50)-0.08(x-60)-(10)=0
We multiply parentheses
0.2x-0.08x+10+4.8-10=0
We add all the numbers together, and all the variables
0.12x+4.8=0
We move all terms containing x to the left, all other terms to the right
0.12x=-4.8
x=-4.8/0.12
x=-40
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