2a*4.5=108-3a

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Solution for 2a*4.5=108-3a equation: 



2a*4.5=108-3a

We move all terms to the left:

2a*4.5-(108-3a)=0

We add all the numbers together, and all the variables

2a*4.5-(-3a+108)=0

Wy multiply elements

9a-(-3a+108)=0

We get rid of parentheses

9a+3a-108=0

We add all the numbers together, and all the variables

12a-108=0

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

12a=108

a=108/12

a=9

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