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1.2a-3.65=-2.57
We simplify the equation to the form, which is simple to understand
1.2a-3.65=-2.57
We move all terms containing a to the left and all other terms to the right.
+1.2a=-2.57+3.65
We simplify left and right side of the equation.
+1.2a=+1.08
We divide both sides of the equation by 1.2 to get a.
a=0.9
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