18k-21=15k+3

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Solution for 18k-21=15k+3 equation:


Simplifying
18k + -21 = 15k + 3

Reorder the terms:
-21 + 18k = 15k + 3

Reorder the terms:
-21 + 18k = 3 + 15k

Solving
-21 + 18k = 3 + 15k

Solving for variable 'k'.

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

Add '-15k' to each side of the equation.
-21 + 18k + -15k = 3 + 15k + -15k

Combine like terms: 18k + -15k = 3k
-21 + 3k = 3 + 15k + -15k

Combine like terms: 15k + -15k = 0
-21 + 3k = 3 + 0
-21 + 3k = 3

Add '21' to each side of the equation.
-21 + 21 + 3k = 3 + 21

Combine like terms: -21 + 21 = 0
0 + 3k = 3 + 21
3k = 3 + 21

Combine like terms: 3 + 21 = 24
3k = 24

Divide each side by '3'.
k = 8

Simplifying
k = 8

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