9(4t-20)=5(9t-9)

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Solution for 9(4t-20)=5(9t-9) equation: 



9(4t-20)=5(9t-9)

We move all terms to the left:

9(4t-20)-(5(9t-9))=0

We multiply parentheses

36t-(5(9t-9))-180=0



We calculate terms in parentheses: -(5(9t-9)), so:

5(9t-9)

We multiply parentheses

45t-45

Back to the equation:

-(45t-45)



We get rid of parentheses

36t-45t+45-180=0

We add all the numbers together, and all the variables

-9t-135=0

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

-9t=135

t=135/-9

t=-15

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