22=-8u+6(u+7)

Solution for 22=-8u+6(u+7) equation:

Simplifying
22 = -8u + 6(u + 7)

Reorder the terms:
22 = -8u + 6(7 + u)
22 = -8u + (7 * 6 + u * 6)
22 = -8u + (42 + 6u)

Reorder the terms:
22 = 42 + -8u + 6u

Combine like terms: -8u + 6u = -2u
22 = 42 + -2u

Solving
22 = 42 + -2u

Solving for variable 'u'.

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

Add '2u' to each side of the equation.
22 + 2u = 42 + -2u + 2u

Combine like terms: -2u + 2u = 0
22 + 2u = 42 + 0
22 + 2u = 42

Add '-22' to each side of the equation.
22 + -22 + 2u = 42 + -22

Combine like terms: 22 + -22 = 0
0 + 2u = 42 + -22
2u = 42 + -22

Combine like terms: 42 + -22 = 20
2u = 20

Divide each side by '2'.
u = 10

Simplifying
u = 10