3k+40=2k-21

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Solution for 3k+40=2k-21 equation:


Simplifying
3k + 40 = 2k + -21

Reorder the terms:
40 + 3k = 2k + -21

Reorder the terms:
40 + 3k = -21 + 2k

Solving
40 + 3k = -21 + 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.
40 + 3k + -2k = -21 + 2k + -2k

Combine like terms: 3k + -2k = 1k
40 + 1k = -21 + 2k + -2k

Combine like terms: 2k + -2k = 0
40 + 1k = -21 + 0
40 + 1k = -21

Add '-40' to each side of the equation.
40 + -40 + 1k = -21 + -40

Combine like terms: 40 + -40 = 0
0 + 1k = -21 + -40
1k = -21 + -40

Combine like terms: -21 + -40 = -61
1k = -61

Divide each side by '1'.
k = -61

Simplifying
k = -61

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