-40x+18=-20x+3=15x+9

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Solution for -40x+18=-20x+3=15x+9 equation: 



-40x+18=-20x+3=15x+9

We move all terms to the left:

-40x+18-(-20x+3)=0

We get rid of parentheses

-40x+20x-3+18=0

We add all the numbers together, and all the variables

-20x+15=0

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

-20x=-15

x=-15/-20

x=3/4

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