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3/4=a/12
We simplify the equation to the form, which is simple to understand
3/4=a/12
Simplifying:
+ 0.75=a/12
Simplifying:
+ 0.75=0.0833333333333a
We move all terms containing a to the left and all other terms to the right.
-0.0833333333333a=-0.75
We simplify left and right side of the equation.
-0.0833333333333a=-0.75
We divide both sides of the equation by -00.0833333333333 to get a.
a=9
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