45+-5k=25

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Solution for 45+-5k=25 equation: 


Simplifying
45 + -5k = 25

Solving
45 + -5k = 25

Solving for variable 'k'.

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

Add '-45' to each side of the equation.
45 + -45 + -5k = 25 + -45

Combine like terms: 45 + -45 = 0
0 + -5k = 25 + -45
-5k = 25 + -45

Combine like terms: 25 + -45 = -20
-5k = -20

Divide each side by '-5'.
k = 4

Simplifying
k = 4

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