320=x+s+t

Solution for 320=x+s+t equation:

Simplifying
320 = x + s + t

Reorder the terms:
320 = s + t + x

Solving
320 = s + t + x

Solving for variable 's'.

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

Add '-1s' to each side of the equation.
320 + -1s = s + t + -1s + x

Reorder the terms:
320 + -1s = s + -1s + t + x

Combine like terms: s + -1s = 0
320 + -1s = 0 + t + x
320 + -1s = t + x

Add '-320' to each side of the equation.
320 + -320 + -1s = t + -320 + x

Combine like terms: 320 + -320 = 0
0 + -1s = t + -320 + x
-1s = t + -320 + x

Reorder the terms:
-1s = -320 + t + x

Divide each side by '-1'.
s = 320 + -1t + -1x

Simplifying
s = 320 + -1t + -1x