-20t=18t-2(10t+9)

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Solution for -20t=18t-2(10t+9) equation: 



-20t=18t-2(10t+9)

We move all terms to the left:

-20t-(18t-2(10t+9))=0



We calculate terms in parentheses: -(18t-2(10t+9)), so:

18t-2(10t+9)

We multiply parentheses

18t-20t-18

We add all the numbers together, and all the variables

-2t-18

Back to the equation:

-(-2t-18)



We get rid of parentheses

-20t+2t+18=0

We add all the numbers together, and all the variables

-18t+18=0

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

-18t=-18

t=-18/-18

t=1

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