2u+7=4u-39

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Solution for 2u+7=4u-39 equation: 



2u+7=4u-39

We move all terms to the left:

2u+7-(4u-39)=0

We get rid of parentheses

2u-4u+39+7=0

We add all the numbers together, and all the variables

-2u+46=0

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

-2u=-46

u=-46/-2

u=+23

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