4(5+2k)=-4(-k+7)

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Solution for 4(5+2k)=-4(-k+7) equation:


Simplifying
4(5 + 2k) = -4(-1k + 7)
(5 * 4 + 2k * 4) = -4(-1k + 7)
(20 + 8k) = -4(-1k + 7)

Reorder the terms:
20 + 8k = -4(7 + -1k)
20 + 8k = (7 * -4 + -1k * -4)
20 + 8k = (-28 + 4k)

Solving
20 + 8k = -28 + 4k

Solving for variable 'k'.

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

Add '-4k' to each side of the equation.
20 + 8k + -4k = -28 + 4k + -4k

Combine like terms: 8k + -4k = 4k
20 + 4k = -28 + 4k + -4k

Combine like terms: 4k + -4k = 0
20 + 4k = -28 + 0
20 + 4k = -28

Add '-20' to each side of the equation.
20 + -20 + 4k = -28 + -20

Combine like terms: 20 + -20 = 0
0 + 4k = -28 + -20
4k = -28 + -20

Combine like terms: -28 + -20 = -48
4k = -48

Divide each side by '4'.
k = -12

Simplifying
k = -12

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