3a+4=19-2a

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Solution for 3a+4=19-2a equation: 



3a+4=19-2a

We move all terms to the left:

3a+4-(19-2a)=0

We add all the numbers together, and all the variables

3a-(-2a+19)+4=0

We get rid of parentheses

3a+2a-19+4=0

We add all the numbers together, and all the variables

5a-15=0

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

5a=15

a=15/5

a=3

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