15=10(x+10)+5(2x+11)

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Solution for 15=10(x+10)+5(2x+11) equation: 



15=10(x+10)+5(2x+11)

We move all terms to the left:

15-(10(x+10)+5(2x+11))=0



We calculate terms in parentheses: -(10(x+10)+5(2x+11)), so:

10(x+10)+5(2x+11)

We multiply parentheses

10x+10x+100+55

We add all the numbers together, and all the variables

20x+155

Back to the equation:

-(20x+155)



We get rid of parentheses

-20x-155+15=0

We add all the numbers together, and all the variables

-20x-140=0

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

-20x=140

x=140/-20

x=-7

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