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11.50=0.13a+2.50
We move all terms to the left:
11.50-(0.13a+2.50)=0
We add all the numbers together, and all the variables
-(0.13a+2.5)+11.50=0
We add all the numbers together, and all the variables
-(0.13a+2.5)+11.5=0
We get rid of parentheses
-0.13a-2.5+11.5=0
We add all the numbers together, and all the variables
-0.13a+9=0
We move all terms containing a to the left, all other terms to the right
-0.13a=-9
a=-9/-0.13
a=69+0.03/0.13
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