22=2u+2(u-3)

Solution for 22=2u+2(u-3) equation:

Simplifying
22 = 2u + 2(u + -3)

Reorder the terms:
22 = 2u + 2(-3 + u)
22 = 2u + (-3 * 2 + u * 2)
22 = 2u + (-6 + 2u)

Reorder the terms:
22 = -6 + 2u + 2u

Combine like terms: 2u + 2u = 4u
22 = -6 + 4u

Solving
22 = -6 + 4u

Solving for variable 'u'.

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

Add '-4u' to each side of the equation.
22 + -4u = -6 + 4u + -4u

Combine like terms: 4u + -4u = 0
22 + -4u = -6 + 0
22 + -4u = -6

Add '-22' to each side of the equation.
22 + -22 + -4u = -6 + -22

Combine like terms: 22 + -22 = 0
0 + -4u = -6 + -22
-4u = -6 + -22

Combine like terms: -6 + -22 = -28
-4u = -28

Divide each side by '-4'.
u = 7

Simplifying
u = 7