7-e=4

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Solution for 7-e=4 equation: 


Simplifying
7 + -1e = 4

Solving
7 + -1e = 4

Solving for variable 'e'.

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

Add '-7' to each side of the equation.
7 + -7 + -1e = 4 + -7

Combine like terms: 7 + -7 = 0
0 + -1e = 4 + -7
-1e = 4 + -7

Combine like terms: 4 + -7 = -3
-1e = -3

Divide each side by '-1'.
e = 3

Simplifying
e = 3

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