3.6=0.3b+8.1

Solution for 3.6=0.3b+8.1 equation:

Simplifying
3.6 = 0.3b + 8.1

Reorder the terms:
3.6 = 8.1 + 0.3b

Solving
3.6 = 8.1 + 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.
3.6 + -0.3b = 8.1 + 0.3b + -0.3b

Combine like terms: 0.3b + -0.3b = 0.0
3.6 + -0.3b = 8.1 + 0.0
3.6 + -0.3b = 8.1

Add '-3.6' to each side of the equation.
3.6 + -3.6 + -0.3b = 8.1 + -3.6

Combine like terms: 3.6 + -3.6 = 0.0
0.0 + -0.3b = 8.1 + -3.6
-0.3b = 8.1 + -3.6

Combine like terms: 8.1 + -3.6 = 4.5
-0.3b = 4.5

Divide each side by '-0.3'.
b = -15

Simplifying
b = -15