10a-20=40

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Solution for 10a-20=40 equation: 



10a-20=40

We move all terms to the left:

10a-20-(40)=0

We add all the numbers together, and all the variables

10a-60=0

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

10a=60

a=60/10

a=6

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