3a=a+20/2

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Solution for 3a=a+20/2 equation: 



3a=a+20/2

We move all terms to the left:

3a-(a+20/2)=0

We add all the numbers together, and all the variables

3a-(a+10)=0

We get rid of parentheses

3a-a-10=0

We add all the numbers together, and all the variables

2a-10=0

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

2a=10

a=10/2

a=5

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