3.1(7-k)=9

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Solution for 3.1(7-k)=9 equation:


Simplifying
3.1(7 + -1k) = 9
(7 * 3.1 + -1k * 3.1) = 9
(21.7 + -3.1k) = 9

Solving
21.7 + -3.1k = 9

Solving for variable 'k'.

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

Add '-21.7' to each side of the equation.
21.7 + -21.7 + -3.1k = 9 + -21.7

Combine like terms: 21.7 + -21.7 = 0.0
0.0 + -3.1k = 9 + -21.7
-3.1k = 9 + -21.7

Combine like terms: 9 + -21.7 = -12.7
-3.1k = -12.7

Divide each side by '-3.1'.
k = 4.096774194

Simplifying
k = 4.096774194

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