20x-40=-10x+50

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Solution for 20x-40=-10x+50 equation: 



20x-40=-10x+50

We move all terms to the left:

20x-40-(-10x+50)=0

We get rid of parentheses

20x+10x-50-40=0

We add all the numbers together, and all the variables

30x-90=0

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

30x=90

x=90/30

x=3

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