5(4-2k)-4K=90

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Solution for 5(4-2k)-4K=90 equation: 


Simplifying
5(4 + -2k) + -4K = 90
(4 * 5 + -2k * 5) + -4K = 90
(20 + -10k) + -4K = 90

Reorder the terms:
20 + -4K + -10k = 90

Solving
20 + -4K + -10k = 90

Solving for variable 'K'.

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

Add '-20' to each side of the equation.
20 + -4K + -20 + -10k = 90 + -20

Reorder the terms:
20 + -20 + -4K + -10k = 90 + -20

Combine like terms: 20 + -20 = 0
0 + -4K + -10k = 90 + -20
-4K + -10k = 90 + -20

Combine like terms: 90 + -20 = 70
-4K + -10k = 70

Add '10k' to each side of the equation.
-4K + -10k + 10k = 70 + 10k

Combine like terms: -10k + 10k = 0
-4K + 0 = 70 + 10k
-4K = 70 + 10k

Divide each side by '-4'.
K = -17.5 + -2.5k

Simplifying
K = -17.5 + -2.5k

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