67-40=u

Solution for 67-40=u equation:

Simplifying
67 + -40 = u

Combine like terms: 67 + -40 = 27
27 = u

Solving
27 = u

Solving for variable 'u'.

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

Add '-1u' to each side of the equation.
27 + -1u = u + -1u

Combine like terms: u + -1u = 0
27 + -1u = 0

Add '-27' to each side of the equation.
27 + -27 + -1u = 0 + -27

Combine like terms: 27 + -27 = 0
0 + -1u = 0 + -27
-1u = 0 + -27

Combine like terms: 0 + -27 = -27
-1u = -27

Divide each side by '-1'.
u = 27

Simplifying
u = 27