12=k+3+7

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Solution for 12=k+3+7 equation: 


Simplifying
12 = k + 3 + 7

Reorder the terms:
12 = 3 + 7 + k

Combine like terms: 3 + 7 = 10
12 = 10 + k

Solving
12 = 10 + 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.
12 + -1k = 10 + k + -1k

Combine like terms: k + -1k = 0
12 + -1k = 10 + 0
12 + -1k = 10

Add '-12' to each side of the equation.
12 + -12 + -1k = 10 + -12

Combine like terms: 12 + -12 = 0
0 + -1k = 10 + -12
-1k = 10 + -12

Combine like terms: 10 + -12 = -2
-1k = -2

Divide each side by '-1'.
k = 2

Simplifying
k = 2

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