9a+1-7a-5=-20

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Solution for 9a+1-7a-5=-20 equation:



9a+1-7a-5=-20
We move all terms to the left:
9a+1-7a-5-(-20)=0
We add all the numbers together, and all the variables
2a+16=0
We move all terms containing a to the left, all other terms to the right
2a=-16
a=-16/2
a=-8

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