9a-7a=-11

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Solution for 9a-7a=-11 equation:



9a-7a=-11
We move all terms to the left:
9a-7a-(-11)=0
We add all the numbers together, and all the variables
2a+11=0
We move all terms containing a to the left, all other terms to the right
2a=-11
a=-11/2
a=-5+1/2

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