7(3-0.5k)=3k-5

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Solution for 7(3-0.5k)=3k-5 equation:


Simplifying
7(3 + -0.5k) = 3k + -5
(3 * 7 + -0.5k * 7) = 3k + -5
(21 + -3.5k) = 3k + -5

Reorder the terms:
21 + -3.5k = -5 + 3k

Solving
21 + -3.5k = -5 + 3k

Solving for variable 'k'.

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

Add '-3k' to each side of the equation.
21 + -3.5k + -3k = -5 + 3k + -3k

Combine like terms: -3.5k + -3k = -6.5k
21 + -6.5k = -5 + 3k + -3k

Combine like terms: 3k + -3k = 0
21 + -6.5k = -5 + 0
21 + -6.5k = -5

Add '-21' to each side of the equation.
21 + -21 + -6.5k = -5 + -21

Combine like terms: 21 + -21 = 0
0 + -6.5k = -5 + -21
-6.5k = -5 + -21

Combine like terms: -5 + -21 = -26
-6.5k = -26

Divide each side by '-6.5'.
k = 4

Simplifying
k = 4

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