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-19=2.5(y-4)
We move all terms to the left:
-19-(2.5(y-4))=0
We calculate terms in parentheses: -(2.5(y-4)), so:We get rid of parentheses
2.5(y-4)
We multiply parentheses
2.5y-10
Back to the equation:
-(2.5y-10)
-2.5y+10-19=0
We add all the numbers together, and all the variables
-2.5y-9=0
We move all terms containing y to the left, all other terms to the right
-2.5y=9
y=9/-2.5
y=-3+1/1.66666666667
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