45=k+7k+k

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Solution for 45=k+7k+k equation:


Simplifying
45 = k + 7k + k

Combine like terms: k + 7k = 8k
45 = 8k + k

Combine like terms: 8k + k = 9k
45 = 9k

Solving
45 = 9k

Solving for variable 'k'.

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

Add '-9k' to each side of the equation.
45 + -9k = 9k + -9k

Combine like terms: 9k + -9k = 0
45 + -9k = 0

Add '-45' to each side of the equation.
45 + -45 + -9k = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -9k = 0 + -45
-9k = 0 + -45

Combine like terms: 0 + -45 = -45
-9k = -45

Divide each side by '-9'.
k = 5

Simplifying
k = 5

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