5k+28=2k+91

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Solution for 5k+28=2k+91 equation: 


Simplifying
5k + 28 = 2k + 91

Reorder the terms:
28 + 5k = 2k + 91

Reorder the terms:
28 + 5k = 91 + 2k

Solving
28 + 5k = 91 + 2k

Solving for variable 'k'.

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

Add '-2k' to each side of the equation.
28 + 5k + -2k = 91 + 2k + -2k

Combine like terms: 5k + -2k = 3k
28 + 3k = 91 + 2k + -2k

Combine like terms: 2k + -2k = 0
28 + 3k = 91 + 0
28 + 3k = 91

Add '-28' to each side of the equation.
28 + -28 + 3k = 91 + -28

Combine like terms: 28 + -28 = 0
0 + 3k = 91 + -28
3k = 91 + -28

Combine like terms: 91 + -28 = 63
3k = 63

Divide each side by '3'.
k = 21

Simplifying
k = 21

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