2b+6+3b-1=90

Solution for 2b+6+3b-1=90 equation:

Simplifying
2b + 6 + 3b + -1 = 90

Reorder the terms:
6 + -1 + 2b + 3b = 90

Combine like terms: 6 + -1 = 5
5 + 2b + 3b = 90

Combine like terms: 2b + 3b = 5b
5 + 5b = 90

Solving
5 + 5b = 90

Solving for variable 'b'.

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

Add '-5' to each side of the equation.
5 + -5 + 5b = 90 + -5

Combine like terms: 5 + -5 = 0
0 + 5b = 90 + -5
5b = 90 + -5

Combine like terms: 90 + -5 = 85
5b = 85

Divide each side by '5'.
b = 17

Simplifying
b = 17