4=10-3a

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Solution for 4=10-3a equation: 



4=10-3a

We move all terms to the left:

4-(10-3a)=0

We add all the numbers together, and all the variables

-(-3a+10)+4=0

We get rid of parentheses

3a-10+4=0

We add all the numbers together, and all the variables

3a-6=0

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

3a=6

a=6/3

a=2

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