3k-4=7k+8

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Solution for 3k-4=7k+8 equation:


Simplifying
3k + -4 = 7k + 8

Reorder the terms:
-4 + 3k = 7k + 8

Reorder the terms:
-4 + 3k = 8 + 7k

Solving
-4 + 3k = 8 + 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 = 8 + 7k + -7k

Combine like terms: 3k + -7k = -4k
-4 + -4k = 8 + 7k + -7k

Combine like terms: 7k + -7k = 0
-4 + -4k = 8 + 0
-4 + -4k = 8

Add '4' to each side of the equation.
-4 + 4 + -4k = 8 + 4

Combine like terms: -4 + 4 = 0
0 + -4k = 8 + 4
-4k = 8 + 4

Combine like terms: 8 + 4 = 12
-4k = 12

Divide each side by '-4'.
k = -3

Simplifying
k = -3

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