4*2=k-1

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Solution for 4*2=k-1 equation:


Simplifying
4 * 2 = k + -1

Multiply 4 * 2
8 = k + -1

Reorder the terms:
8 = -1 + k

Solving
8 = -1 + k

Solving for variable 'k'.

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

Add '-1k' to each side of the equation.
8 + -1k = -1 + k + -1k

Combine like terms: k + -1k = 0
8 + -1k = -1 + 0
8 + -1k = -1

Add '-8' to each side of the equation.
8 + -8 + -1k = -1 + -8

Combine like terms: 8 + -8 = 0
0 + -1k = -1 + -8
-1k = -1 + -8

Combine like terms: -1 + -8 = -9
-1k = -9

Divide each side by '-1'.
k = 9

Simplifying
k = 9

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