.25(k-1)=7

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Solution for .25(k-1)=7 equation: 


Simplifying
0.25(k + -1) = 7

Reorder the terms:
0.25(-1 + k) = 7
(-1 * 0.25 + k * 0.25) = 7
(-0.25 + 0.25k) = 7

Solving
-0.25 + 0.25k = 7

Solving for variable 'k'.

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

Add '0.25' to each side of the equation.
-0.25 + 0.25 + 0.25k = 7 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + 0.25k = 7 + 0.25
0.25k = 7 + 0.25

Combine like terms: 7 + 0.25 = 7.25
0.25k = 7.25

Divide each side by '0.25'.
k = 29

Simplifying
k = 29

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