7(9+k)=84+6k-15

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Solution for 7(9+k)=84+6k-15 equation:


Simplifying
7(9 + k) = 84 + 6k + -15
(9 * 7 + k * 7) = 84 + 6k + -15
(63 + 7k) = 84 + 6k + -15

Reorder the terms:
63 + 7k = 84 + -15 + 6k

Combine like terms: 84 + -15 = 69
63 + 7k = 69 + 6k

Solving
63 + 7k = 69 + 6k

Solving for variable 'k'.

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

Add '-6k' to each side of the equation.
63 + 7k + -6k = 69 + 6k + -6k

Combine like terms: 7k + -6k = 1k
63 + 1k = 69 + 6k + -6k

Combine like terms: 6k + -6k = 0
63 + 1k = 69 + 0
63 + 1k = 69

Add '-63' to each side of the equation.
63 + -63 + 1k = 69 + -63

Combine like terms: 63 + -63 = 0
0 + 1k = 69 + -63
1k = 69 + -63

Combine like terms: 69 + -63 = 6
1k = 6

Divide each side by '1'.
k = 6

Simplifying
k = 6

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