7a=20+3a

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Solution for 7a=20+3a equation:



7a=20+3a
We move all terms to the left:
7a-(20+3a)=0
We add all the numbers together, and all the variables
7a-(3a+20)=0
We get rid of parentheses
7a-3a-20=0
We add all the numbers together, and all the variables
4a-20=0
We move all terms containing a to the left, all other terms to the right
4a=20
a=20/4
a=5

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