18a+2a+2a-20a-a=15

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Solution for 18a+2a+2a-20a-a=15 equation:



18a+2a+2a-20a-a=15
We move all terms to the left:
18a+2a+2a-20a-a-(15)=0
We add all the numbers together, and all the variables
a-15=0
We move all terms containing a to the left, all other terms to the right
a=15

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