7(3+3k)=7(-6+2k)

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Solution for 7(3+3k)=7(-6+2k) equation:


Simplifying
7(3 + 3k) = 7(-6 + 2k)
(3 * 7 + 3k * 7) = 7(-6 + 2k)
(21 + 21k) = 7(-6 + 2k)
21 + 21k = (-6 * 7 + 2k * 7)
21 + 21k = (-42 + 14k)

Solving
21 + 21k = -42 + 14k

Solving for variable 'k'.

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

Add '-14k' to each side of the equation.
21 + 21k + -14k = -42 + 14k + -14k

Combine like terms: 21k + -14k = 7k
21 + 7k = -42 + 14k + -14k

Combine like terms: 14k + -14k = 0
21 + 7k = -42 + 0
21 + 7k = -42

Add '-21' to each side of the equation.
21 + -21 + 7k = -42 + -21

Combine like terms: 21 + -21 = 0
0 + 7k = -42 + -21
7k = -42 + -21

Combine like terms: -42 + -21 = -63
7k = -63

Divide each side by '7'.
k = -9

Simplifying
k = -9

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