9=e-1

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Solution for 9=e-1 equation:


Simplifying
9 = e + -1

Reorder the terms:
9 = -1 + e

Solving
9 = -1 + 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.
9 + -1e = -1 + e + -1e

Combine like terms: e + -1e = 0
9 + -1e = -1 + 0
9 + -1e = -1

Add '-9' to each side of the equation.
9 + -9 + -1e = -1 + -9

Combine like terms: 9 + -9 = 0
0 + -1e = -1 + -9
-1e = -1 + -9

Combine like terms: -1 + -9 = -10
-1e = -10

Divide each side by '-1'.
e = 10

Simplifying
e = 10

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