4k+3=-5k+21

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Solution for 4k+3=-5k+21 equation:


Simplifying
4k + 3 = -5k + 21

Reorder the terms:
3 + 4k = -5k + 21

Reorder the terms:
3 + 4k = 21 + -5k

Solving
3 + 4k = 21 + -5k

Solving for variable 'k'.

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

Add '5k' to each side of the equation.
3 + 4k + 5k = 21 + -5k + 5k

Combine like terms: 4k + 5k = 9k
3 + 9k = 21 + -5k + 5k

Combine like terms: -5k + 5k = 0
3 + 9k = 21 + 0
3 + 9k = 21

Add '-3' to each side of the equation.
3 + -3 + 9k = 21 + -3

Combine like terms: 3 + -3 = 0
0 + 9k = 21 + -3
9k = 21 + -3

Combine like terms: 21 + -3 = 18
9k = 18

Divide each side by '9'.
k = 2

Simplifying
k = 2

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