2.80*0.1=b

Solution for 2.80*0.1=b equation:

Simplifying
2.80 * 0.1 = b

Multiply 2.80 * 0.1
0.28 = b

Solving
0.28 = 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.
0.28 + -1b = b + -1b

Combine like terms: b + -1b = 0
0.28 + -1b = 0

Add '-0.28' to each side of the equation.
0.28 + -0.28 + -1b = 0 + -0.28

Combine like terms: 0.28 + -0.28 = 0.00
0.00 + -1b = 0 + -0.28
-1b = 0 + -0.28

Combine like terms: 0 + -0.28 = -0.28
-1b = -0.28

Divide each side by '-1'.
b = 0.28

Simplifying
b = 0.28