3-4=e+12

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Solution for 3-4=e+12 equation:


Simplifying
3 + -4 = e + 12

Combine like terms: 3 + -4 = -1
-1 = e + 12

Reorder the terms:
-1 = 12 + e

Solving
-1 = 12 + e

Solving for variable 'e'.

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

Add '-1e' to each side of the equation.
-1 + -1e = 12 + e + -1e

Combine like terms: e + -1e = 0
-1 + -1e = 12 + 0
-1 + -1e = 12

Add '1' to each side of the equation.
-1 + 1 + -1e = 12 + 1

Combine like terms: -1 + 1 = 0
0 + -1e = 12 + 1
-1e = 12 + 1

Combine like terms: 12 + 1 = 13
-1e = 13

Divide each side by '-1'.
e = -13

Simplifying
e = -13

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