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8.9+1.2+(3a-1)=14.9
We simplify the equation to the form, which is simple to understand
8.9+1.2+(3a-1)=14.9
Remove unnecessary parentheses
+8.9+1.2+3a-1=+14.9
We move all terms containing a to the left and all other terms to the right.
+3a=+14.9-8.9-1.2+1
We simplify left and right side of the equation.
+3a=+5.8
We divide both sides of the equation by 3 to get a.
a=1.93333333333
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