10a+27=4a+21

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Solution for 10a+27=4a+21 equation: 



10a+27=4a+21

We move all terms to the left:

10a+27-(4a+21)=0

We get rid of parentheses

10a-4a-21+27=0

We add all the numbers together, and all the variables

6a+6=0

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

6a=-6

a=-6/6

a=-1

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