4(5x-20)=-9x

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Solution for 4(5x-20)=-9x equation: 



4(5x-20)=-9x

We move all terms to the left:

4(5x-20)-(-9x)=0

We multiply parentheses

20x-(-9x)-80=0

We get rid of parentheses

20x+9x-80=0

We add all the numbers together, and all the variables

29x-80=0

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

29x=80

x=80/29

x=2+22/29

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