90=-6(k-7)

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Solution for 90=-6(k-7) equation:


Simplifying
90 = -6(k + -7)

Reorder the terms:
90 = -6(-7 + k)
90 = (-7 * -6 + k * -6)
90 = (42 + -6k)

Solving
90 = 42 + -6k

Solving for variable 'k'.

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

Add '6k' to each side of the equation.
90 + 6k = 42 + -6k + 6k

Combine like terms: -6k + 6k = 0
90 + 6k = 42 + 0
90 + 6k = 42

Add '-90' to each side of the equation.
90 + -90 + 6k = 42 + -90

Combine like terms: 90 + -90 = 0
0 + 6k = 42 + -90
6k = 42 + -90

Combine like terms: 42 + -90 = -48
6k = -48

Divide each side by '6'.
k = -8

Simplifying
k = -8

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