k*(7-9)=(k*7)-(k*9)

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Solution for k*(7-9)=(k*7)-(k*9) equation:


Simplifying
k(7 + -9) = (k * 7) + -1(k * 9)

Combine like terms: 7 + -9 = -2
k(-2) = (k * 7) + -1(k * 9)

Reorder the terms for easier multiplication:
-2k = (k * 7) + -1(k * 9)

Reorder the terms for easier multiplication:
-2k = (7k) + -1(k * 9)

Reorder the terms for easier multiplication:
-2k = (7k) + -1(9k)

Remove parenthesis around (9k)
-2k = (7k) + -1 * 9k

Multiply -1 * 9
-2k = (7k) + -9k

Combine like terms: (7k) + -9k = -2k
-2k = -2k

Add '2k' to each side of the equation.
-2k + 2k = -2k + 2k

Combine like terms: -2k + 2k = 0
0 = -2k + 2k

Combine like terms: -2k + 2k = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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