7(3a-2)=49

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Solution for 7(3a-2)=49 equation: 



7(3a-2)=49

We move all terms to the left:

7(3a-2)-(49)=0

We multiply parentheses

21a-14-49=0

We add all the numbers together, and all the variables

21a-63=0

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

21a=63

a=63/21

a=3

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