100-10=15a

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Solution for 100-10=15a equation:



100-10=15a
We move all terms to the left:
100-10-(15a)=0
We add all the numbers together, and all the variables
-15a+90=0
We move all terms containing a to the left, all other terms to the right
-15a=-90
a=-90/-15
a=+6

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