140=(t+9)20

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Solution for 140=(t+9)20 equation: 



140=(t+9)20

We move all terms to the left:

140-((t+9)20)=0



We calculate terms in parentheses: -((t+9)20), so:

(t+9)20

We multiply parentheses

20t+180

Back to the equation:

-(20t+180)



We get rid of parentheses

-20t-180+140=0

We add all the numbers together, and all the variables

-20t-40=0

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

-20t=40

t=40/-20

t=-2

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