20x+40=30

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Solution for 20x+40=30 equation: 



20x+40=30

We move all terms to the left:

20x+40-(30)=0

We add all the numbers together, and all the variables

20x+10=0

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

20x=-10

x=-10/20

x=-1/2

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