2e-15=7e+20

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Solution for 2e-15=7e+20 equation:


Simplifying
2e + -15 = 7e + 20

Reorder the terms:
-15 + 2e = 7e + 20

Reorder the terms:
-15 + 2e = 20 + 7e

Solving
-15 + 2e = 20 + 7e

Solving for variable 'e'.

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

Add '-7e' to each side of the equation.
-15 + 2e + -7e = 20 + 7e + -7e

Combine like terms: 2e + -7e = -5e
-15 + -5e = 20 + 7e + -7e

Combine like terms: 7e + -7e = 0
-15 + -5e = 20 + 0
-15 + -5e = 20

Add '15' to each side of the equation.
-15 + 15 + -5e = 20 + 15

Combine like terms: -15 + 15 = 0
0 + -5e = 20 + 15
-5e = 20 + 15

Combine like terms: 20 + 15 = 35
-5e = 35

Divide each side by '-5'.
e = -7

Simplifying
e = -7

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