72.47-9.039=b

Solution for 72.47-9.039=b equation:

Simplifying
72.47 + -9.039 = b

Combine like terms: 72.47 + -9.039 = 63.431
63.431 = b

Solving
63.431 = 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.
63.431 + -1b = b + -1b

Combine like terms: b + -1b = 0
63.431 + -1b = 0

Add '-63.431' to each side of the equation.
63.431 + -63.431 + -1b = 0 + -63.431

Combine like terms: 63.431 + -63.431 = 0.000
0.000 + -1b = 0 + -63.431
-1b = 0 + -63.431

Combine like terms: 0 + -63.431 = -63.431
-1b = -63.431

Divide each side by '-1'.
b = 63.431

Simplifying
b = 63.431