2(u+20)-3=7

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Solution for 2(u+20)-3=7 equation: 



2(u+20)-3=7

We move all terms to the left:

2(u+20)-3-(7)=0

We add all the numbers together, and all the variables

2(u+20)-10=0

We multiply parentheses

2u+40-10=0

We add all the numbers together, and all the variables

2u+30=0

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

2u=-30

u=-30/2

u=-15

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