2(9-2k)=-2(-9+2k)

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Solution for 2(9-2k)=-2(-9+2k) equation: 


Simplifying
2(9 + -2k) = -2(-9 + 2k)
(9 * 2 + -2k * 2) = -2(-9 + 2k)
(18 + -4k) = -2(-9 + 2k)
18 + -4k = (-9 * -2 + 2k * -2)
18 + -4k = (18 + -4k)

Add '-18' to each side of the equation.
18 + -18 + -4k = 18 + -18 + -4k

Combine like terms: 18 + -18 = 0
0 + -4k = 18 + -18 + -4k
-4k = 18 + -18 + -4k

Combine like terms: 18 + -18 = 0
-4k = 0 + -4k
-4k = -4k

Add '4k' to each side of the equation.
-4k + 4k = -4k + 4k

Combine like terms: -4k + 4k = 0
0 = -4k + 4k

Combine like terms: -4k + 4k = 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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