20=k+(k-10)*60

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Solution for 20=k+(k-10)*60 equation:


Simplifying
20 = k + (k + -10) * 60

Reorder the terms:
20 = k + (-10 + k) * 60

Reorder the terms for easier multiplication:
20 = k + 60(-10 + k)
20 = k + (-10 * 60 + k * 60)
20 = k + (-600 + 60k)

Reorder the terms:
20 = -600 + k + 60k

Combine like terms: k + 60k = 61k
20 = -600 + 61k

Solving
20 = -600 + 61k

Solving for variable 'k'.

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

Add '-61k' to each side of the equation.
20 + -61k = -600 + 61k + -61k

Combine like terms: 61k + -61k = 0
20 + -61k = -600 + 0
20 + -61k = -600

Add '-20' to each side of the equation.
20 + -20 + -61k = -600 + -20

Combine like terms: 20 + -20 = 0
0 + -61k = -600 + -20
-61k = -600 + -20

Combine like terms: -600 + -20 = -620
-61k = -620

Divide each side by '-61'.
k = 10.16393443

Simplifying
k = 10.16393443

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