90=3(4b-2)

Solution for 90=3(4b-2) equation:

Simplifying
90 = 3(4b + -2)

Reorder the terms:
90 = 3(-2 + 4b)
90 = (-2 * 3 + 4b * 3)
90 = (-6 + 12b)

Solving
90 = -6 + 12b

Solving for variable 'b'.

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

Add '-12b' to each side of the equation.
90 + -12b = -6 + 12b + -12b

Combine like terms: 12b + -12b = 0
90 + -12b = -6 + 0
90 + -12b = -6

Add '-90' to each side of the equation.
90 + -90 + -12b = -6 + -90

Combine like terms: 90 + -90 = 0
0 + -12b = -6 + -90
-12b = -6 + -90

Combine like terms: -6 + -90 = -96
-12b = -96

Divide each side by '-12'.
b = 8

Simplifying
b = 8