-5k-2(4k+5)=7k

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Solution for -5k-2(4k+5)=7k equation:


Simplifying
-5k + -2(4k + 5) = 7k

Reorder the terms:
-5k + -2(5 + 4k) = 7k
-5k + (5 * -2 + 4k * -2) = 7k
-5k + (-10 + -8k) = 7k

Reorder the terms:
-10 + -5k + -8k = 7k

Combine like terms: -5k + -8k = -13k
-10 + -13k = 7k

Solving
-10 + -13k = 7k

Solving for variable 'k'.

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

Add '-7k' to each side of the equation.
-10 + -13k + -7k = 7k + -7k

Combine like terms: -13k + -7k = -20k
-10 + -20k = 7k + -7k

Combine like terms: 7k + -7k = 0
-10 + -20k = 0

Add '10' to each side of the equation.
-10 + 10 + -20k = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -20k = 0 + 10
-20k = 0 + 10

Combine like terms: 0 + 10 = 10
-20k = 10

Divide each side by '-20'.
k = -0.5

Simplifying
k = -0.5

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