-66=-3(2k-3)-7(k+7)

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Solution for -66=-3(2k-3)-7(k+7) equation:


Simplifying
-66 = -3(2k + -3) + -7(k + 7)

Reorder the terms:
-66 = -3(-3 + 2k) + -7(k + 7)
-66 = (-3 * -3 + 2k * -3) + -7(k + 7)
-66 = (9 + -6k) + -7(k + 7)

Reorder the terms:
-66 = 9 + -6k + -7(7 + k)
-66 = 9 + -6k + (7 * -7 + k * -7)
-66 = 9 + -6k + (-49 + -7k)

Reorder the terms:
-66 = 9 + -49 + -6k + -7k

Combine like terms: 9 + -49 = -40
-66 = -40 + -6k + -7k

Combine like terms: -6k + -7k = -13k
-66 = -40 + -13k

Solving
-66 = -40 + -13k

Solving for variable 'k'.

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

Add '13k' to each side of the equation.
-66 + 13k = -40 + -13k + 13k

Combine like terms: -13k + 13k = 0
-66 + 13k = -40 + 0
-66 + 13k = -40

Add '66' to each side of the equation.
-66 + 66 + 13k = -40 + 66

Combine like terms: -66 + 66 = 0
0 + 13k = -40 + 66
13k = -40 + 66

Combine like terms: -40 + 66 = 26
13k = 26

Divide each side by '13'.
k = 2

Simplifying
k = 2

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