-20b=-2(10b-18)+13

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Solution for -20b=-2(10b-18)+13 equation: 



-20b=-2(10b-18)+13

We move all terms to the left:

-20b-(-2(10b-18)+13)=0



We calculate terms in parentheses: -(-2(10b-18)+13), so:

-2(10b-18)+13

We multiply parentheses

-20b+36+13

We add all the numbers together, and all the variables

-20b+49

Back to the equation:

-(-20b+49)



We get rid of parentheses

-20b+20b-49=0

We add all the numbers together, and all the variables

-49!=0

There is no solution for this equation

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