11-7a=20

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Solution for 11-7a=20 equation:



11-7a=20
We move all terms to the left:
11-7a-(20)=0
We add all the numbers together, and all the variables
-7a-9=0
We move all terms containing a to the left, all other terms to the right
-7a=9
a=9/-7
a=-1+2/7

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