9e-9=7+e

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Solution for 9e-9=7+e equation:


Simplifying
9e + -9 = 7 + e

Reorder the terms:
-9 + 9e = 7 + e

Solving
-9 + 9e = 7 + 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 + 9e + -1e = 7 + e + -1e

Combine like terms: 9e + -1e = 8e
-9 + 8e = 7 + e + -1e

Combine like terms: e + -1e = 0
-9 + 8e = 7 + 0
-9 + 8e = 7

Add '9' to each side of the equation.
-9 + 9 + 8e = 7 + 9

Combine like terms: -9 + 9 = 0
0 + 8e = 7 + 9
8e = 7 + 9

Combine like terms: 7 + 9 = 16
8e = 16

Divide each side by '8'.
e = 2

Simplifying
e = 2

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