-1=3(-2+b)

Solution for -1=3(-2+b) equation:

Simplifying
-1 = 3(-2 + b)
-1 = (-2 * 3 + b * 3)
-1 = (-6 + 3b)

Solving
-1 = -6 + 3b

Solving for variable 'b'.

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

Add '-3b' to each side of the equation.
-1 + -3b = -6 + 3b + -3b

Combine like terms: 3b + -3b = 0
-1 + -3b = -6 + 0
-1 + -3b = -6

Add '1' to each side of the equation.
-1 + 1 + -3b = -6 + 1

Combine like terms: -1 + 1 = 0
0 + -3b = -6 + 1
-3b = -6 + 1

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

Divide each side by '-3'.
b = 1.666666667

Simplifying
b = 1.666666667