1.3-3b=b-.3

Solution for 1.3-3b=b-.3 equation:

Simplifying
1.3 + -3b = b + -0.3

Reorder the terms:
1.3 + -3b = -0.3 + b

Solving
1.3 + -3b = -0.3 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
1.3 + -3b + -1b = -0.3 + b + -1b

Combine like terms: -3b + -1b = -4b
1.3 + -4b = -0.3 + b + -1b

Combine like terms: b + -1b = 0
1.3 + -4b = -0.3 + 0
1.3 + -4b = -0.3

Add '-1.3' to each side of the equation.
1.3 + -1.3 + -4b = -0.3 + -1.3

Combine like terms: 1.3 + -1.3 = 0.0
0.0 + -4b = -0.3 + -1.3
-4b = -0.3 + -1.3

Combine like terms: -0.3 + -1.3 = -1.6
-4b = -1.6

Divide each side by '-4'.
b = 0.4

Simplifying
b = 0.4