20a-3(2a+3)=33

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Solution for 20a-3(2a+3)=33 equation: 



20a-3(2a+3)=33

We move all terms to the left:

20a-3(2a+3)-(33)=0

We multiply parentheses

20a-6a-9-33=0

We add all the numbers together, and all the variables

14a-42=0

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

14a=42

a=42/14

a=3

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