3+7s=9s

Solution for 3+7s=9s equation:

Simplifying
3 + 7s = 9s

Solving
3 + 7s = 9s

Solving for variable 's'.

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

Add '-9s' to each side of the equation.
3 + 7s + -9s = 9s + -9s

Combine like terms: 7s + -9s = -2s
3 + -2s = 9s + -9s

Combine like terms: 9s + -9s = 0
3 + -2s = 0

Add '-3' to each side of the equation.
3 + -3 + -2s = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -2s = 0 + -3
-2s = 0 + -3

Combine like terms: 0 + -3 = -3
-2s = -3

Divide each side by '-2'.
s = 1.5

Simplifying
s = 1.5