0.9=0.3b

Solution for 0.9=0.3b equation:

Simplifying
0.9 = 0.3b

Solving
0.9 = 0.3b

Solving for variable 'b'.

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

Add '-0.3b' to each side of the equation.
0.9 + -0.3b = 0.3b + -0.3b

Combine like terms: 0.3b + -0.3b = 0.0
0.9 + -0.3b = 0.0

Add '-0.9' to each side of the equation.
0.9 + -0.9 + -0.3b = 0.0 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + -0.3b = 0.0 + -0.9
-0.3b = 0.0 + -0.9

Combine like terms: 0.0 + -0.9 = -0.9
-0.3b = -0.9

Divide each side by '-0.3'.
b = 3

Simplifying
b = 3