4(7-8k)=21

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Solution for 4(7-8k)=21 equation: 


Simplifying
4(7 + -8k) = 21
(7 * 4 + -8k * 4) = 21
(28 + -32k) = 21

Solving
28 + -32k = 21

Solving for variable 'k'.

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

Add '-28' to each side of the equation.
28 + -28 + -32k = 21 + -28

Combine like terms: 28 + -28 = 0
0 + -32k = 21 + -28
-32k = 21 + -28

Combine like terms: 21 + -28 = -7
-32k = -7

Divide each side by '-32'.
k = 0.21875

Simplifying
k = 0.21875

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