5k+9=7k-7

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Solution for 5k+9=7k-7 equation:


Simplifying
5k + 9 = 7k + -7

Reorder the terms:
9 + 5k = 7k + -7

Reorder the terms:
9 + 5k = -7 + 7k

Solving
9 + 5k = -7 + 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.
9 + 5k + -7k = -7 + 7k + -7k

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

Combine like terms: 7k + -7k = 0
9 + -2k = -7 + 0
9 + -2k = -7

Add '-9' to each side of the equation.
9 + -9 + -2k = -7 + -9

Combine like terms: 9 + -9 = 0
0 + -2k = -7 + -9
-2k = -7 + -9

Combine like terms: -7 + -9 = -16
-2k = -16

Divide each side by '-2'.
k = 8

Simplifying
k = 8

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