7.5+3.1=b

Solution for 7.5+3.1=b equation:

Simplifying
7.5 + 3.1 = b

Combine like terms: 7.5 + 3.1 = 10.6
10.6 = b

Solving
10.6 = 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.
10.6 + -1b = b + -1b

Combine like terms: b + -1b = 0
10.6 + -1b = 0

Add '-10.6' to each side of the equation.
10.6 + -10.6 + -1b = 0 + -10.6

Combine like terms: 10.6 + -10.6 = 0.0
0.0 + -1b = 0 + -10.6
-1b = 0 + -10.6

Combine like terms: 0 + -10.6 = -10.6
-1b = -10.6

Divide each side by '-1'.
b = 10.6

Simplifying
b = 10.6