10u+10u+5=-7(-5u+10)

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Solution for 10u+10u+5=-7(-5u+10) equation: 



10u+10u+5=-7(-5u+10)

We move all terms to the left:

10u+10u+5-(-7(-5u+10))=0

We add all the numbers together, and all the variables

20u-(-7(-5u+10))+5=0



We calculate terms in parentheses: -(-7(-5u+10)), so:

-7(-5u+10)

We multiply parentheses

35u-70

Back to the equation:

-(35u-70)



We get rid of parentheses

20u-35u+70+5=0

We add all the numbers together, and all the variables

-15u+75=0

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

-15u=-75

u=-75/-15

u=+5

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