(e+5)*2=21

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Solution for (e+5)*2=21 equation:


Simplifying
(e + 5) * 2 = 21

Reorder the terms:
(5 + e) * 2 = 21

Reorder the terms for easier multiplication:
2(5 + e) = 21
(5 * 2 + e * 2) = 21
(10 + 2e) = 21

Solving
10 + 2e = 21

Solving for variable 'e'.

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

Add '-10' to each side of the equation.
10 + -10 + 2e = 21 + -10

Combine like terms: 10 + -10 = 0
0 + 2e = 21 + -10
2e = 21 + -10

Combine like terms: 21 + -10 = 11
2e = 11

Divide each side by '2'.
e = 5.5

Simplifying
e = 5.5

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