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0.20x+0.18(50+x)=0.18(50)
We move all terms to the left:
0.20x+0.18(50+x)-(0.18(50))=0
We add all the numbers together, and all the variables
0.20x+0.18(x+50)-(0.185)=0
We add all the numbers together, and all the variables
0.20x+0.18(x+50)-0.185=0
We multiply parentheses
0.20x+0.18x+9-0.185=0
We add all the numbers together, and all the variables
0.38x+8.815=0
We move all terms containing x to the left, all other terms to the right
0.38x=-8.815
x=-8.815/0.38
x=-23+0.074999999999999/0.38
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