21=t/4+13

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Solution for 21=t/4+13 equation: 



21=t/4+13

We move all terms to the left:

21-(t/4+13)=0

We get rid of parentheses

-t/4-13+21=0

We multiply all the terms by the denominator


-t-13*4+21*4=0

We add all the numbers together, and all the variables

-1t+32=0

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

-t=-32

t=-32/-1

t=+32

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