4.2=.75s+v

Solution for 4.2=.75s+v equation:

Simplifying
4.2 = 0.75s + v

Solving
4.2 = 0.75s + v

Solving for variable 's'.

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

Add '-0.75s' to each side of the equation.
4.2 + -0.75s = 0.75s + -0.75s + v

Combine like terms: 0.75s + -0.75s = 0.00
4.2 + -0.75s = 0.00 + v
4.2 + -0.75s = v

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -0.75s = -4.2 + v

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -0.75s = -4.2 + v
-0.75s = -4.2 + v

Divide each side by '-0.75'.
s = 5.6 + -1.333333333v

Simplifying
s = 5.6 + -1.333333333v