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0.12(y-7)+0.02y=0.04-0.03(30)
We move all terms to the left:
0.12(y-7)+0.02y-(0.04-0.03(30))=0
We add all the numbers together, and all the variables
0.12(y-7)+0.02y-(0.007)=0
We add all the numbers together, and all the variables
0.02y+0.12(y-7)-0.007=0
We multiply parentheses
0.02y+0.12y-0.84-0.007=0
We add all the numbers together, and all the variables
0.14y-0.847=0
We move all terms containing y to the left, all other terms to the right
0.14y=0.847
y=0.847/0.14
y=6+0.0069999999999999/0.14
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