12=7e+8-2e

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Solution for 12=7e+8-2e equation:


Simplifying
12 = 7e + 8 + -2e

Reorder the terms:
12 = 8 + 7e + -2e

Combine like terms: 7e + -2e = 5e
12 = 8 + 5e

Solving
12 = 8 + 5e

Solving for variable 'e'.

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

Add '-5e' to each side of the equation.
12 + -5e = 8 + 5e + -5e

Combine like terms: 5e + -5e = 0
12 + -5e = 8 + 0
12 + -5e = 8

Add '-12' to each side of the equation.
12 + -12 + -5e = 8 + -12

Combine like terms: 12 + -12 = 0
0 + -5e = 8 + -12
-5e = 8 + -12

Combine like terms: 8 + -12 = -4
-5e = -4

Divide each side by '-5'.
e = 0.8

Simplifying
e = 0.8

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