-120=5(1+5k)

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Solution for -120=5(1+5k) equation:


Simplifying
-120 = 5(1 + 5k)
-120 = (1 * 5 + 5k * 5)
-120 = (5 + 25k)

Solving
-120 = 5 + 25k

Solving for variable 'k'.

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

Add '-25k' to each side of the equation.
-120 + -25k = 5 + 25k + -25k

Combine like terms: 25k + -25k = 0
-120 + -25k = 5 + 0
-120 + -25k = 5

Add '120' to each side of the equation.
-120 + 120 + -25k = 5 + 120

Combine like terms: -120 + 120 = 0
0 + -25k = 5 + 120
-25k = 5 + 120

Combine like terms: 5 + 120 = 125
-25k = 125

Divide each side by '-25'.
k = -5

Simplifying
k = -5

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