7.5k-9-5.5k=-20.5

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Solution for 7.5k-9-5.5k=-20.5 equation:


Simplifying
7.5k + -9 + -5.5k = -20.5

Reorder the terms:
-9 + 7.5k + -5.5k = -20.5

Combine like terms: 7.5k + -5.5k = 2k
-9 + 2k = -20.5

Solving
-9 + 2k = -20.5

Solving for variable 'k'.

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

Add '9' to each side of the equation.
-9 + 9 + 2k = -20.5 + 9

Combine like terms: -9 + 9 = 0
0 + 2k = -20.5 + 9
2k = -20.5 + 9

Combine like terms: -20.5 + 9 = -11.5
2k = -11.5

Divide each side by '2'.
k = -5.75

Simplifying
k = -5.75

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