10u+19=7u-20

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Solution for 10u+19=7u-20 equation: 



10u+19=7u-20

We move all terms to the left:

10u+19-(7u-20)=0

We get rid of parentheses

10u-7u+20+19=0

We add all the numbers together, and all the variables

3u+39=0

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

3u=-39

u=-39/3

u=-13

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