3k+3=7k-15

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


Simplifying
3k + 3 = 7k + -15

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

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

Solving
3 + 3k = -15 + 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.
3 + 3k + -7k = -15 + 7k + -7k

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

Combine like terms: 7k + -7k = 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 = -18
-4k = -18

Divide each side by '-4'.
k = 4.5

Simplifying
k = 4.5

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