40=5(4k-3)+5(-5+4k)

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Solution for 40=5(4k-3)+5(-5+4k) equation:


Simplifying
40 = 5(4k + -3) + 5(-5 + 4k)

Reorder the terms:
40 = 5(-3 + 4k) + 5(-5 + 4k)
40 = (-3 * 5 + 4k * 5) + 5(-5 + 4k)
40 = (-15 + 20k) + 5(-5 + 4k)
40 = -15 + 20k + (-5 * 5 + 4k * 5)
40 = -15 + 20k + (-25 + 20k)

Reorder the terms:
40 = -15 + -25 + 20k + 20k

Combine like terms: -15 + -25 = -40
40 = -40 + 20k + 20k

Combine like terms: 20k + 20k = 40k
40 = -40 + 40k

Solving
40 = -40 + 40k

Solving for variable 'k'.

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

Add '-40k' to each side of the equation.
40 + -40k = -40 + 40k + -40k

Combine like terms: 40k + -40k = 0
40 + -40k = -40 + 0
40 + -40k = -40

Add '-40' to each side of the equation.
40 + -40 + -40k = -40 + -40

Combine like terms: 40 + -40 = 0
0 + -40k = -40 + -40
-40k = -40 + -40

Combine like terms: -40 + -40 = -80
-40k = -80

Divide each side by '-40'.
k = 2

Simplifying
k = 2

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