15+7e=57

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Solution for 15+7e=57 equation: 


Simplifying
15 + 7e = 57

Solving
15 + 7e = 57

Solving for variable 'e'.

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

Add '-15' to each side of the equation.
15 + -15 + 7e = 57 + -15

Combine like terms: 15 + -15 = 0
0 + 7e = 57 + -15
7e = 57 + -15

Combine like terms: 57 + -15 = 42
7e = 42

Divide each side by '7'.
e = 6

Simplifying
e = 6

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