220-k=180

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Solution for 220-k=180 equation:


Simplifying
220 + -1k = 180

Solving
220 + -1k = 180

Solving for variable 'k'.

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

Add '-220' to each side of the equation.
220 + -220 + -1k = 180 + -220

Combine like terms: 220 + -220 = 0
0 + -1k = 180 + -220
-1k = 180 + -220

Combine like terms: 180 + -220 = -40
-1k = -40

Divide each side by '-1'.
k = 40

Simplifying
k = 40

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