0=7u-4-2+5u

Solution for 0=7u-4-2+5u equation:

Simplifying
0 = 7u + -4 + -2 + 5u

Reorder the terms:
0 = -4 + -2 + 7u + 5u

Combine like terms: -4 + -2 = -6
0 = -6 + 7u + 5u

Combine like terms: 7u + 5u = 12u
0 = -6 + 12u

Solving
0 = -6 + 12u

Solving for variable 'u'.

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

Add '-12u' to each side of the equation.
0 + -12u = -6 + 12u + -12u
Remove the zero:
-12u = -6 + 12u + -12u

Combine like terms: 12u + -12u = 0
-12u = -6 + 0
-12u = -6

Divide each side by '-12'.
u = 0.5

Simplifying
u = 0.5