7k+3=3k+15

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Solution for 7k+3=3k+15 equation:


Simplifying
7k + 3 = 3k + 15

Reorder the terms:
3 + 7k = 3k + 15

Reorder the terms:
3 + 7k = 15 + 3k

Solving
3 + 7k = 15 + 3k

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Add '-3k' to each side of the equation.
3 + 7k + -3k = 15 + 3k + -3k

Combine like terms: 7k + -3k = 4k
3 + 4k = 15 + 3k + -3k

Combine like terms: 3k + -3k = 0
3 + 4k = 15 + 0
3 + 4k = 15

Add '-3' to each side of the equation.
3 + -3 + 4k = 15 + -3

Combine like terms: 3 + -3 = 0
0 + 4k = 15 + -3
4k = 15 + -3

Combine like terms: 15 + -3 = 12
4k = 12

Divide each side by '4'.
k = 3

Simplifying
k = 3

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