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15a-4.5+1/2=1.2+8
We move all terms to the left:
15a-4.5+1/2-(1.2+8)=0
We add all the numbers together, and all the variables
15a-4.5+1/2-(9.2)=0
We add all the numbers together, and all the variables
15a-13.7+1/2=0
We multiply all the terms by the denominator
15a*2+1-(13.7)*2=0
We add all the numbers together, and all the variables
15a*2-26.4=0
Wy multiply elements
30a-26.4=0
We move all terms containing a to the left, all other terms to the right
30a=26.4
a=26.4/30
a=11/12.5
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