20x-5x=-15x-40

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Solution for 20x-5x=-15x-40 equation: 



20x-5x=-15x-40

We move all terms to the left:

20x-5x-(-15x-40)=0

We add all the numbers together, and all the variables

15x-(-15x-40)=0

We get rid of parentheses

15x+15x+40=0

We add all the numbers together, and all the variables

30x+40=0

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

30x=-40

x=-40/30

x=-1+1/3

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