8.5=-2(2t+6.5)

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Solution for 8.5=-2(2t+6.5) equation: 



8.5=-2(2t+6.5)

We move all terms to the left:

8.5-(-2(2t+6.5))=0



We calculate terms in parentheses: -(-2(2t+6.5)), so:

-2(2t+6.5)

We multiply parentheses

-4t-13

Back to the equation:

-(-4t-13)



We get rid of parentheses

4t+13+8.5=0

We add all the numbers together, and all the variables

4t+21.5=0

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

4t=-21.5

t=-21.5/4

t=-5+1/2.6666666666667

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