-2(k+2)-(-3k-9)=-7

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Solution for -2(k+2)-(-3k-9)=-7 equation:


Simplifying
-2(k + 2) + -1(-3k + -9) = -7

Reorder the terms:
-2(2 + k) + -1(-3k + -9) = -7
(2 * -2 + k * -2) + -1(-3k + -9) = -7
(-4 + -2k) + -1(-3k + -9) = -7

Reorder the terms:
-4 + -2k + -1(-9 + -3k) = -7
-4 + -2k + (-9 * -1 + -3k * -1) = -7
-4 + -2k + (9 + 3k) = -7

Reorder the terms:
-4 + 9 + -2k + 3k = -7

Combine like terms: -4 + 9 = 5
5 + -2k + 3k = -7

Combine like terms: -2k + 3k = 1k
5 + 1k = -7

Solving
5 + 1k = -7

Solving for variable 'k'.

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

Add '-5' to each side of the equation.
5 + -5 + 1k = -7 + -5

Combine like terms: 5 + -5 = 0
0 + 1k = -7 + -5
1k = -7 + -5

Combine like terms: -7 + -5 = -12
1k = -12

Divide each side by '1'.
k = -12

Simplifying
k = -12

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