4=15-ex-8

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Solution for 4=15-ex-8 equation:


Simplifying
4 = 15 + -1ex + -8

Reorder the terms:
4 = 15 + -8 + -1ex

Combine like terms: 15 + -8 = 7
4 = 7 + -1ex

Solving
4 = 7 + -1ex

Solving for variable 'e'.

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

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

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

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

Combine like terms: 4 + -4 = 0
0 + ex = 7 + -4
ex = 7 + -4

Combine like terms: 7 + -4 = 3
ex = 3

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

Simplifying
e = 3x-1

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