-18x+90=-20(1+2x)=

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Solution for -18x+90=-20(1+2x)= equation: 



-18x+90=-20(1+2x)=

We move all terms to the left:

-18x+90-(-20(1+2x))=0

We add all the numbers together, and all the variables

-18x-(-20(2x+1))+90=0



We calculate terms in parentheses: -(-20(2x+1)), so:

-20(2x+1)

We multiply parentheses

-40x-20

Back to the equation:

-(-40x-20)



We get rid of parentheses

-18x+40x+20+90=0

We add all the numbers together, and all the variables

22x+110=0

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

22x=-110

x=-110/22

x=-5

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