-9+9=7+k

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Solution for -9+9=7+k equation: 


Simplifying
-9 + 9 = 7 + k

Combine like terms: -9 + 9 = 0
0 = 7 + k

Solving
0 = 7 + k

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.
0 + -1k = 7 + k + -1k
Remove the zero:
-1k = 7 + k + -1k

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

Divide each side by '-1'.
k = -7

Simplifying
k = -7

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