-4(5-7e)=0

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Solution for -4(5-7e)=0 equation: 


Simplifying
-4(5 + -7e) = 0
(5 * -4 + -7e * -4) = 0
(-20 + 28e) = 0

Solving
-20 + 28e = 0

Solving for variable 'e'.

Move all terms containing e to the left, all other terms to the right.

Add '20' to each side of the equation.
-20 + 20 + 28e = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 28e = 0 + 20
28e = 0 + 20

Combine like terms: 0 + 20 = 20
28e = 20

Divide each side by '28'.
e = 0.7142857143

Simplifying
e = 0.7142857143

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