4(3-9k)+15=-225

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Solution for 4(3-9k)+15=-225 equation:


Simplifying
4(3 + -9k) + 15 = -225
(3 * 4 + -9k * 4) + 15 = -225
(12 + -36k) + 15 = -225

Reorder the terms:
12 + 15 + -36k = -225

Combine like terms: 12 + 15 = 27
27 + -36k = -225

Solving
27 + -36k = -225

Solving for variable 'k'.

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

Add '-27' to each side of the equation.
27 + -27 + -36k = -225 + -27

Combine like terms: 27 + -27 = 0
0 + -36k = -225 + -27
-36k = -225 + -27

Combine like terms: -225 + -27 = -252
-36k = -252

Divide each side by '-36'.
k = 7

Simplifying
k = 7

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