-7=t-3.9

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Solution for -7=t-3.9 equation: 



-7=t-3.9

We move all terms to the left:

-7-(t-3.9)=0

We get rid of parentheses

-t+3.9-7=0

We add all the numbers together, and all the variables

-1t-3.1=0

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

-t=3.1

t=3.1/-1

t=-3+0.1/1

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