20a+30=70

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Solution for 20a+30=70 equation: 



20a+30=70

We move all terms to the left:

20a+30-(70)=0

We add all the numbers together, and all the variables

20a-40=0

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

20a=40

a=40/20

a=2

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