2(2.1)+-4.2=5

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Solution for 2(2.1)+-4.2=5 equation:


2(2.1)+-4.2=5

We simplify the equation to the form, which is simple to understand 
2(2.1)+-4.2=5

Reorder the terms in parentheses
+(+4.2)+-4.2=5

Remove unnecessary parentheses
+4.2+-4.2=+5

We move all terms containing  to the left and all other terms to the right. 
0=+5-4.2

We simplify left and right side of the equation. 
0=0.8

0=0.8

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

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