I=100x+50(650-x)

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Solution for I=100x+50(650-x) equation:



=100I+50(650-I)
We move all terms to the left:
-(100I+50(650-I))=0
We add all the numbers together, and all the variables
-(100I+50(-1I+650))=0
We calculate terms in parentheses: -(100I+50(-1I+650)), so:
100I+50(-1I+650)
We multiply parentheses
100I-50I+32500
We add all the numbers together, and all the variables
50I+32500
Back to the equation:
-(50I+32500)
We get rid of parentheses
-50I-32500=0
We move all terms containing I to the left, all other terms to the right
-50I=32500
I=32500/-50
I=-650

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