t+s-u+x=t+s

Solution for t+s-u+x=t+s equation:

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

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

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

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

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

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

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

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

Reorder the terms:
t + -1t + -1u + x = t + -1t

Combine like terms: t + -1t = 0
0 + -1u + x = t + -1t
-1u + x = t + -1t

Combine like terms: t + -1t = 0
-1u + x = 0

Solving
-1u + x = 0

Solving for variable 'u'.

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

Add '-1x' to each side of the equation.
-1u + x + -1x = 0 + -1x

Combine like terms: x + -1x = 0
-1u + 0 = 0 + -1x
-1u = 0 + -1x
Remove the zero:
-1u = -1x

Divide each side by '-1'.
u = x

Simplifying
u = x