7k-9=3k-8k

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Solution for 7k-9=3k-8k equation:


Simplifying
7k + -9 = 3k + -8k

Reorder the terms:
-9 + 7k = 3k + -8k

Combine like terms: 3k + -8k = -5k
-9 + 7k = -5k

Solving
-9 + 7k = -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.
-9 + 7k + 5k = -5k + 5k

Combine like terms: 7k + 5k = 12k
-9 + 12k = -5k + 5k

Combine like terms: -5k + 5k = 0
-9 + 12k = 0

Add '9' to each side of the equation.
-9 + 9 + 12k = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 12k = 0 + 9
12k = 0 + 9

Combine like terms: 0 + 9 = 9
12k = 9

Divide each side by '12'.
k = 0.75

Simplifying
k = 0.75

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