10(u+3)+15=55

Solution for 10(u+3)+15=55 equation:

Simplifying
10(u + 3) + 15 = 55

Reorder the terms:
10(3 + u) + 15 = 55
(3 * 10 + u * 10) + 15 = 55
(30 + 10u) + 15 = 55

Reorder the terms:
30 + 15 + 10u = 55

Combine like terms: 30 + 15 = 45
45 + 10u = 55

Solving
45 + 10u = 55

Solving for variable 'u'.

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

Add '-45' to each side of the equation.
45 + -45 + 10u = 55 + -45

Combine like terms: 45 + -45 = 0
0 + 10u = 55 + -45
10u = 55 + -45

Combine like terms: 55 + -45 = 10
10u = 10

Divide each side by '10'.
u = 1

Simplifying
u = 1