75=-6(k-7)+6(k+5)

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Solution for 75=-6(k-7)+6(k+5) equation: 


Simplifying
75 = -6(k + -7) + 6(k + 5)

Reorder the terms:
75 = -6(-7 + k) + 6(k + 5)
75 = (-7 * -6 + k * -6) + 6(k + 5)
75 = (42 + -6k) + 6(k + 5)

Reorder the terms:
75 = 42 + -6k + 6(5 + k)
75 = 42 + -6k + (5 * 6 + k * 6)
75 = 42 + -6k + (30 + 6k)

Reorder the terms:
75 = 42 + 30 + -6k + 6k

Combine like terms: 42 + 30 = 72
75 = 72 + -6k + 6k

Combine like terms: -6k + 6k = 0
75 = 72 + 0
75 = 72

Solving
75 = 72

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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