-4(2-3)+2(4.2-2)=0.4

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Solution for -4(2-3)+2(4.2-2)=0.4 equation:


-4(2-3)+2(4.2-2)=0.4

We simplify the equation to the form, which is simple to understand 
-4(2-3)+2(4.2-2)=0.4

Simplifying terms in parentheses
-4*(-1)+2*(4.2-2)=0.4

Simplifying terms in parentheses
-4*(-1)+2*(+2.2)=0.4

Reorder the terms in parentheses
+(+4)+2*(+2.2)=0.4

Remove unnecessary parentheses
+4+2+*(+2.2+)=0.4

Reorder the terms in parentheses
+4+(+4.4)=0.4

Remove unnecessary parentheses
+4+4.4=0.4

We move all terms containing  to the left and all other terms to the right. 
0=0.4-4-4.4

We simplify left and right side of the equation. 
0=-8

0=-8

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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