13a+7a-1=19

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Solution for 13a+7a-1=19 equation:



13a+7a-1=19
We move all terms to the left:
13a+7a-1-(19)=0
We add all the numbers together, and all the variables
20a-20=0
We move all terms containing a to the left, all other terms to the right
20a=20
a=20/20
a=1

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