10(5-k)+8=-8(k-3)-9

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Solution for 10(5-k)+8=-8(k-3)-9 equation:


Simplifying
10(5 + -1k) + 8 = -8(k + -3) + -9
(5 * 10 + -1k * 10) + 8 = -8(k + -3) + -9
(50 + -10k) + 8 = -8(k + -3) + -9

Reorder the terms:
50 + 8 + -10k = -8(k + -3) + -9

Combine like terms: 50 + 8 = 58
58 + -10k = -8(k + -3) + -9

Reorder the terms:
58 + -10k = -8(-3 + k) + -9
58 + -10k = (-3 * -8 + k * -8) + -9
58 + -10k = (24 + -8k) + -9

Reorder the terms:
58 + -10k = 24 + -9 + -8k

Combine like terms: 24 + -9 = 15
58 + -10k = 15 + -8k

Solving
58 + -10k = 15 + -8k

Solving for variable 'k'.

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

Add '8k' to each side of the equation.
58 + -10k + 8k = 15 + -8k + 8k

Combine like terms: -10k + 8k = -2k
58 + -2k = 15 + -8k + 8k

Combine like terms: -8k + 8k = 0
58 + -2k = 15 + 0
58 + -2k = 15

Add '-58' to each side of the equation.
58 + -58 + -2k = 15 + -58

Combine like terms: 58 + -58 = 0
0 + -2k = 15 + -58
-2k = 15 + -58

Combine like terms: 15 + -58 = -43
-2k = -43

Divide each side by '-2'.
k = 21.5

Simplifying
k = 21.5

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