10=3+b*2

Solution for 10=3+b*2 equation:

Simplifying
10 = 3 + b * 2

Reorder the terms for easier multiplication:
10 = 3 + 2b

Solving
10 = 3 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
10 + -2b = 3 + 2b + -2b

Combine like terms: 2b + -2b = 0
10 + -2b = 3 + 0
10 + -2b = 3

Add '-10' to each side of the equation.
10 + -10 + -2b = 3 + -10

Combine like terms: 10 + -10 = 0
0 + -2b = 3 + -10
-2b = 3 + -10

Combine like terms: 3 + -10 = -7
-2b = -7

Divide each side by '-2'.
b = 3.5

Simplifying
b = 3.5