21s+6=12s+249

Solution for 21s+6=12s+249 equation:

Simplifying
21s + 6 = 12s + 249

Reorder the terms:
6 + 21s = 12s + 249

Reorder the terms:
6 + 21s = 249 + 12s

Solving
6 + 21s = 249 + 12s

Solving for variable 's'.

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

Add '-12s' to each side of the equation.
6 + 21s + -12s = 249 + 12s + -12s

Combine like terms: 21s + -12s = 9s
6 + 9s = 249 + 12s + -12s

Combine like terms: 12s + -12s = 0
6 + 9s = 249 + 0
6 + 9s = 249

Add '-6' to each side of the equation.
6 + -6 + 9s = 249 + -6

Combine like terms: 6 + -6 = 0
0 + 9s = 249 + -6
9s = 249 + -6

Combine like terms: 249 + -6 = 243
9s = 243

Divide each side by '9'.
s = 27

Simplifying
s = 27