2(k-4)-(-6k-9)=7k

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Solution for 2(k-4)-(-6k-9)=7k equation:


Simplifying
2(k + -4) + -1(-6k + -9) = 7k

Reorder the terms:
2(-4 + k) + -1(-6k + -9) = 7k
(-4 * 2 + k * 2) + -1(-6k + -9) = 7k
(-8 + 2k) + -1(-6k + -9) = 7k

Reorder the terms:
-8 + 2k + -1(-9 + -6k) = 7k
-8 + 2k + (-9 * -1 + -6k * -1) = 7k
-8 + 2k + (9 + 6k) = 7k

Reorder the terms:
-8 + 9 + 2k + 6k = 7k

Combine like terms: -8 + 9 = 1
1 + 2k + 6k = 7k

Combine like terms: 2k + 6k = 8k
1 + 8k = 7k

Solving
1 + 8k = 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.
1 + 8k + -7k = 7k + -7k

Combine like terms: 8k + -7k = 1k
1 + 1k = 7k + -7k

Combine like terms: 7k + -7k = 0
1 + 1k = 0

Add '-1' to each side of the equation.
1 + -1 + 1k = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 1k = 0 + -1
1k = 0 + -1

Combine like terms: 0 + -1 = -1
1k = -1

Divide each side by '1'.
k = -1

Simplifying
k = -1

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