4(k-1)=4(k+1)

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Solution for 4(k-1)=4(k+1) equation: 


Simplifying
4(k + -1) = 4(k + 1)

Reorder the terms:
4(-1 + k) = 4(k + 1)
(-1 * 4 + k * 4) = 4(k + 1)
(-4 + 4k) = 4(k + 1)

Reorder the terms:
-4 + 4k = 4(1 + k)
-4 + 4k = (1 * 4 + k * 4)
-4 + 4k = (4 + 4k)

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

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

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

Solving
-4 = 4

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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