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8a-(a/2)=75
We move all terms to the left:
8a-(a/2)-(75)=0
We add all the numbers together, and all the variables
8a-(+a/2)-75=0
We get rid of parentheses
8a-a/2-75=0
We multiply all the terms by the denominator
8a*2-a-75*2=0
We add all the numbers together, and all the variables
-1a+8a*2-150=0
Wy multiply elements
-1a+16a-150=0
We add all the numbers together, and all the variables
15a-150=0
We move all terms containing a to the left, all other terms to the right
15a=150
a=150/15
a=10
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