7(9+k)=k

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Solution for 7(9+k)=k equation:


Simplifying
7(9 + k) = k
(9 * 7 + k * 7) = k
(63 + 7k) = k

Solving
63 + 7k = k

Solving for variable 'k'.

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

Add '-1k' to each side of the equation.
63 + 7k + -1k = k + -1k

Combine like terms: 7k + -1k = 6k
63 + 6k = k + -1k

Combine like terms: k + -1k = 0
63 + 6k = 0

Add '-63' to each side of the equation.
63 + -63 + 6k = 0 + -63

Combine like terms: 63 + -63 = 0
0 + 6k = 0 + -63
6k = 0 + -63

Combine like terms: 0 + -63 = -63
6k = -63

Divide each side by '6'.
k = -10.5

Simplifying
k = -10.5

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