2(3b+5)-10b=30

Solution for 2(3b+5)-10b=30 equation:

Simplifying
2(3b + 5) + -10b = 30

Reorder the terms:
2(5 + 3b) + -10b = 30
(5 * 2 + 3b * 2) + -10b = 30
(10 + 6b) + -10b = 30

Combine like terms: 6b + -10b = -4b
10 + -4b = 30

Solving
10 + -4b = 30

Solving for variable 'b'.

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

Add '-10' to each side of the equation.
10 + -10 + -4b = 30 + -10

Combine like terms: 10 + -10 = 0
0 + -4b = 30 + -10
-4b = 30 + -10

Combine like terms: 30 + -10 = 20
-4b = 20

Divide each side by '-4'.
b = -5

Simplifying
b = -5