-9(t-9)=4(t-15)

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Solution for -9(t-9)=4(t-15) equation: 



-9(t-9)=4(t-15)

We move all terms to the left:

-9(t-9)-(4(t-15))=0

We multiply parentheses

-9t-(4(t-15))+81=0



We calculate terms in parentheses: -(4(t-15)), so:

4(t-15)

We multiply parentheses

4t-60

Back to the equation:

-(4t-60)



We get rid of parentheses

-9t-4t+60+81=0

We add all the numbers together, and all the variables

-13t+141=0

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

-13t=-141

t=-141/-13

t=10+11/13

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