-7x-9x=5(4x-8)-10(5x+10)

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Solution for -7x-9x=5(4x-8)-10(5x+10) equation: 



-7x-9x=5(4x-8)-10(5x+10)

We move all terms to the left:

-7x-9x-(5(4x-8)-10(5x+10))=0

We add all the numbers together, and all the variables

-16x-(5(4x-8)-10(5x+10))=0



We calculate terms in parentheses: -(5(4x-8)-10(5x+10)), so:

5(4x-8)-10(5x+10)

We multiply parentheses

20x-50x-40-100

We add all the numbers together, and all the variables

-30x-140

Back to the equation:

-(-30x-140)



We get rid of parentheses

-16x+30x+140=0

We add all the numbers together, and all the variables

14x+140=0

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

14x=-140

x=-140/14

x=-10

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