a+30=20-4a

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Solution for a+30=20-4a equation: 



a+30=20-4a

We move all terms to the left:

a+30-(20-4a)=0

We add all the numbers together, and all the variables

a-(-4a+20)+30=0

We get rid of parentheses

a+4a-20+30=0

We add all the numbers together, and all the variables

5a+10=0

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

5a=-10

a=-10/5

a=-2

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