10(a-20)=40

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Solution for 10(a-20)=40 equation: 



10(a-20)=40

We move all terms to the left:

10(a-20)-(40)=0

We multiply parentheses

10a-200-40=0

We add all the numbers together, and all the variables

10a-240=0

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

10a=240

a=240/10

a=24

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