20-19m+20=19m+5(-9m-20)

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Solution for 20-19m+20=19m+5(-9m-20) equation: 



20-19m+20=19m+5(-9m-20)

We move all terms to the left:

20-19m+20-(19m+5(-9m-20))=0

We add all the numbers together, and all the variables

-19m-(19m+5(-9m-20))+40=0



We calculate terms in parentheses: -(19m+5(-9m-20)), so:

19m+5(-9m-20)

We multiply parentheses

19m-45m-100

We add all the numbers together, and all the variables

-26m-100

Back to the equation:

-(-26m-100)



We get rid of parentheses

-19m+26m+100+40=0

We add all the numbers together, and all the variables

7m+140=0

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

7m=-140

m=-140/7

m=-20

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