5(2k+1)-20=25

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Solution for 5(2k+1)-20=25 equation: 


Simplifying
5(2k + 1) + -20 = 25

Reorder the terms:
5(1 + 2k) + -20 = 25
(1 * 5 + 2k * 5) + -20 = 25
(5 + 10k) + -20 = 25

Reorder the terms:
5 + -20 + 10k = 25

Combine like terms: 5 + -20 = -15
-15 + 10k = 25

Solving
-15 + 10k = 25

Solving for variable 'k'.

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

Add '15' to each side of the equation.
-15 + 15 + 10k = 25 + 15

Combine like terms: -15 + 15 = 0
0 + 10k = 25 + 15
10k = 25 + 15

Combine like terms: 25 + 15 = 40
10k = 40

Divide each side by '10'.
k = 4

Simplifying
k = 4

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