9k+80=7k

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Solution for 9k+80=7k equation:


Simplifying
9k + 80 = 7k

Reorder the terms:
80 + 9k = 7k

Solving
80 + 9k = 7k

Solving for variable 'k'.

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

Add '-7k' to each side of the equation.
80 + 9k + -7k = 7k + -7k

Combine like terms: 9k + -7k = 2k
80 + 2k = 7k + -7k

Combine like terms: 7k + -7k = 0
80 + 2k = 0

Add '-80' to each side of the equation.
80 + -80 + 2k = 0 + -80

Combine like terms: 80 + -80 = 0
0 + 2k = 0 + -80
2k = 0 + -80

Combine like terms: 0 + -80 = -80
2k = -80

Divide each side by '2'.
k = -40

Simplifying
k = -40

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