-4.2(a+3)=1.2a-1.8

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Solution for -4.2(a+3)=1.2a-1.8 equation:


-4.2 (a+3)=1.2a-1.8

We simplify the equation to the form, which is simple to understand 
-4.2(a+3)=1.2a-1.8

Reorder the terms in parentheses
+(-4.2a-12.6)=1.2a-1.8

Remove unnecessary parentheses
-4.2a-12.6=+1.2a-1.8

We move all terms containing a to the left and all other terms to the right. 
-4.2a-1.2a=-1.8+12.6

We simplify left and right side of the equation. 
-5.4a=+10.8

We divide both sides of the equation by -5.4 to get a. 
a=-2

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