10+7a=20+20a

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Solution for 10+7a=20+20a equation: 



10+7a=20+20a

We move all terms to the left:

10+7a-(20+20a)=0

We add all the numbers together, and all the variables

7a-(20a+20)+10=0

We get rid of parentheses

7a-20a-20+10=0

We add all the numbers together, and all the variables

-13a-10=0

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

-13a=10

a=10/-13

a=-10/13

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