2a+3a+4a=6a-18

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Solution for 2a+3a+4a=6a-18 equation: 



2a+3a+4a=6a-18

We move all terms to the left:

2a+3a+4a-(6a-18)=0

We add all the numbers together, and all the variables

9a-(6a-18)=0

We get rid of parentheses

9a-6a+18=0

We add all the numbers together, and all the variables

3a+18=0

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

3a=-18

a=-18/3

a=-6

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