3k+4=7k-12

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Solution for 3k+4=7k-12 equation:


Simplifying
3k + 4 = 7k + -12

Reorder the terms:
4 + 3k = 7k + -12

Reorder the terms:
4 + 3k = -12 + 7k

Solving
4 + 3k = -12 + 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.
4 + 3k + -7k = -12 + 7k + -7k

Combine like terms: 3k + -7k = -4k
4 + -4k = -12 + 7k + -7k

Combine like terms: 7k + -7k = 0
4 + -4k = -12 + 0
4 + -4k = -12

Add '-4' to each side of the equation.
4 + -4 + -4k = -12 + -4

Combine like terms: 4 + -4 = 0
0 + -4k = -12 + -4
-4k = -12 + -4

Combine like terms: -12 + -4 = -16
-4k = -16

Divide each side by '-4'.
k = 4

Simplifying
k = 4

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