3+1-1=7s

Solution for 3+1-1=7s equation:

Simplifying
3 + 1 + -1 = 7s

Combine like terms: 3 + 1 = 4
4 + -1 = 7s

Combine like terms: 4 + -1 = 3
3 = 7s

Solving
3 = 7s

Solving for variable 's'.

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

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

Combine like terms: 7s + -7s = 0
3 + -7s = 0

Add '-3' to each side of the equation.
3 + -3 + -7s = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -7s = 0 + -3
-7s = 0 + -3

Combine like terms: 0 + -3 = -3
-7s = -3

Divide each side by '-7'.
s = 0.4285714286

Simplifying
s = 0.4285714286