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(x/276)*30=20
We move all terms to the left:
(x/276)*30-(20)=0
We add all the numbers together, and all the variables
(+x/276)*30-20=0
We multiply parentheses
30x-20=0
We move all terms containing x to the left, all other terms to the right
30x=20
x=20/30
x=2/3
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