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1.5+a=1.8
We simplify the equation to the form, which is simple to understand
1.5+a=1.8
We move all terms containing a to the left and all other terms to the right.
+1a=+1.8-1.5
We simplify left and right side of the equation.
+1a=0.3
We divide both sides of the equation by 1 to get a.
a=0.3
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