19a+2a+2a-18a+4a=18

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Solution for 19a+2a+2a-18a+4a=18 equation: 



19a+2a+2a-18a+4a=18

We move all terms to the left:

19a+2a+2a-18a+4a-(18)=0

We add all the numbers together, and all the variables

9a-18=0

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

9a=18

a=18/9

a=2

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