7e-4+2e+13=90

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Solution for 7e-4+2e+13=90 equation:


Simplifying
7e + -4 + 2e + 13 = 90

Reorder the terms:
-4 + 13 + 7e + 2e = 90

Combine like terms: -4 + 13 = 9
9 + 7e + 2e = 90

Combine like terms: 7e + 2e = 9e
9 + 9e = 90

Solving
9 + 9e = 90

Solving for variable 'e'.

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

Add '-9' to each side of the equation.
9 + -9 + 9e = 90 + -9

Combine like terms: 9 + -9 = 0
0 + 9e = 90 + -9
9e = 90 + -9

Combine like terms: 90 + -9 = 81
9e = 81

Divide each side by '9'.
e = 9

Simplifying
e = 9

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