6.4=5e-(3*4.2)

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Solution for 6.4=5e-(3*4.2) equation:


6.4=5e-(3*4.2)

We simplify the equation to the form, which is simple to understand 
6.4=5e-(3*4.2)

Simplifying:
6.4=5e-(+12.6)

Remove unnecessary parentheses
6.4=5e-12.6

We move all terms containing e to the left and all other terms to the right. 
-5e=-12.6-6.4

We simplify left and right side of the equation. 
-5e=-19

We divide both sides of the equation by -05 to get e. 
e=3.8

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