5(k+6)+3(k-4)=42

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Solution for 5(k+6)+3(k-4)=42 equation:


Simplifying
5(k + 6) + 3(k + -4) = 42

Reorder the terms:
5(6 + k) + 3(k + -4) = 42
(6 * 5 + k * 5) + 3(k + -4) = 42
(30 + 5k) + 3(k + -4) = 42

Reorder the terms:
30 + 5k + 3(-4 + k) = 42
30 + 5k + (-4 * 3 + k * 3) = 42
30 + 5k + (-12 + 3k) = 42

Reorder the terms:
30 + -12 + 5k + 3k = 42

Combine like terms: 30 + -12 = 18
18 + 5k + 3k = 42

Combine like terms: 5k + 3k = 8k
18 + 8k = 42

Solving
18 + 8k = 42

Solving for variable 'k'.

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

Add '-18' to each side of the equation.
18 + -18 + 8k = 42 + -18

Combine like terms: 18 + -18 = 0
0 + 8k = 42 + -18
8k = 42 + -18

Combine like terms: 42 + -18 = 24
8k = 24

Divide each side by '8'.
k = 3

Simplifying
k = 3

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