3=1+2s

Solution for 3=1+2s equation:

Simplifying
3 = 1 + 2s

Solving
3 = 1 + 2s

Solving for variable 's'.

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

Add '-2s' to each side of the equation.
3 + -2s = 1 + 2s + -2s

Combine like terms: 2s + -2s = 0
3 + -2s = 1 + 0
3 + -2s = 1

Add '-3' to each side of the equation.
3 + -3 + -2s = 1 + -3

Combine like terms: 3 + -3 = 0
0 + -2s = 1 + -3
-2s = 1 + -3

Combine like terms: 1 + -3 = -2
-2s = -2

Divide each side by '-2'.
s = 1

Simplifying
s = 1