20+7a=55+3a=

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Solution for 20+7a=55+3a= equation: 



20+7a=55+3a=

We move all terms to the left:

20+7a-(55+3a)=0

We add all the numbers together, and all the variables

7a-(3a+55)+20=0

We get rid of parentheses

7a-3a-55+20=0

We add all the numbers together, and all the variables

4a-35=0

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

4a=35

a=35/4

a=8+3/4

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