3a-10=-21

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Solution for 3a-10=-21 equation: 



3a-10=-21

We move all terms to the left:

3a-10-(-21)=0

We add all the numbers together, and all the variables

3a+11=0

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

3a=-11

a=-11/3

a=-3+2/3

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