4.5b-5.25b+3=3.72

Solution for 4.5b-5.25b+3=3.72 equation:

Simplifying
4.5b + -5.25b + 3 = 3.72

Reorder the terms:
3 + 4.5b + -5.25b = 3.72

Combine like terms: 4.5b + -5.25b = -0.75b
3 + -0.75b = 3.72

Solving
3 + -0.75b = 3.72

Solving for variable 'b'.

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

Add '-3' to each side of the equation.
3 + -3 + -0.75b = 3.72 + -3

Combine like terms: 3 + -3 = 0
0 + -0.75b = 3.72 + -3
-0.75b = 3.72 + -3

Combine like terms: 3.72 + -3 = 0.72
-0.75b = 0.72

Divide each side by '-0.75'.
b = -0.96

Simplifying
b = -0.96