42=u/3+13

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Solution for 42=u/3+13 equation: 



42=u/3+13

We move all terms to the left:

42-(u/3+13)=0

We get rid of parentheses

-u/3-13+42=0

We multiply all the terms by the denominator


-u-13*3+42*3=0

We add all the numbers together, and all the variables

-1u+87=0

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

-u=-87

u=-87/-1

u=+87

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