3b-0.3=4b

Solution for 3b-0.3=4b equation:

Simplifying
3b + -0.3 = 4b

Reorder the terms:
-0.3 + 3b = 4b

Solving
-0.3 + 3b = 4b

Solving for variable 'b'.

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

Add '-4b' to each side of the equation.
-0.3 + 3b + -4b = 4b + -4b

Combine like terms: 3b + -4b = -1b
-0.3 + -1b = 4b + -4b

Combine like terms: 4b + -4b = 0
-0.3 + -1b = 0

Add '0.3' to each side of the equation.
-0.3 + 0.3 + -1b = 0 + 0.3

Combine like terms: -0.3 + 0.3 = 0.0
0.0 + -1b = 0 + 0.3
-1b = 0 + 0.3

Combine like terms: 0 + 0.3 = 0.3
-1b = 0.3

Divide each side by '-1'.
b = -0.3

Simplifying
b = -0.3