20a-30=60

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Solution for 20a-30=60 equation: 



20a-30=60

We move all terms to the left:

20a-30-(60)=0

We add all the numbers together, and all the variables

20a-90=0

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

20a=90

a=90/20

a=4+1/2

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