15a-4a-3a=40

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Solution for 15a-4a-3a=40 equation:



15a-4a-3a=40
We move all terms to the left:
15a-4a-3a-(40)=0
We add all the numbers together, and all the variables
8a-40=0
We move all terms containing a to the left, all other terms to the right
8a=40
a=40/8
a=5

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