100=y(-40)

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Solution for 100=y(-40) equation: 



100=y(-40)

We move all terms to the left:

100-(y(-40))=0



We calculate terms in parentheses: -(y(-40)), so:

y(-40)

We multiply parentheses

-40y

Back to the equation:

-(-40y)



We get rid of parentheses

40y+100=0

We move all terms containing y to the left, all other terms to the right

40y=-100

y=-100/40

y=-2+1/2

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