.2(25-5k)=21-3

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Solution for .2(25-5k)=21-3 equation:


Simplifying
0.2(25 + -5k) = 21 + -3
(25 * 0.2 + -5k * 0.2) = 21 + -3
(5 + -1k) = 21 + -3

Combine like terms: 21 + -3 = 18
5 + -1k = 18

Solving
5 + -1k = 18

Solving for variable 'k'.

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

Add '-5' to each side of the equation.
5 + -5 + -1k = 18 + -5

Combine like terms: 5 + -5 = 0
0 + -1k = 18 + -5
-1k = 18 + -5

Combine like terms: 18 + -5 = 13
-1k = 13

Divide each side by '-1'.
k = -13

Simplifying
k = -13

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