3k+7=4-(9-k)

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Solution for 3k+7=4-(9-k) equation:


Simplifying
3k + 7 = 4 + -1(9 + -1k)

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

Combine like terms: 4 + -9 = -5
7 + 3k = -5 + 1k

Solving
7 + 3k = -5 + 1k

Solving for variable 'k'.

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

Add '-1k' to each side of the equation.
7 + 3k + -1k = -5 + 1k + -1k

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

Combine like terms: 1k + -1k = 0
7 + 2k = -5 + 0
7 + 2k = -5

Add '-7' to each side of the equation.
7 + -7 + 2k = -5 + -7

Combine like terms: 7 + -7 = 0
0 + 2k = -5 + -7
2k = -5 + -7

Combine like terms: -5 + -7 = -12
2k = -12

Divide each side by '2'.
k = -6

Simplifying
k = -6

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