-20x-40=-5(3x+13)

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Solution for -20x-40=-5(3x+13) equation: 



-20x-40=-5(3x+13)

We move all terms to the left:

-20x-40-(-5(3x+13))=0



We calculate terms in parentheses: -(-5(3x+13)), so:

-5(3x+13)

We multiply parentheses

-15x-65

Back to the equation:

-(-15x-65)



We get rid of parentheses

-20x+15x+65-40=0

We add all the numbers together, and all the variables

-5x+25=0

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

-5x=-25

x=-25/-5

x=+5

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