1.2=(-3)b

Solution for 1.2=(-3)b equation:

Simplifying
1.2 = (-3) * b

Solving
1.2 = -3b

Solving for variable 'b'.

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

Add '3b' to each side of the equation.
1.2 + 3b = -3b + 3b

Combine like terms: -3b + 3b = 0
1.2 + 3b = 0

Add '-1.2' to each side of the equation.
1.2 + -1.2 + 3b = 0 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + 3b = 0 + -1.2
3b = 0 + -1.2

Combine like terms: 0 + -1.2 = -1.2
3b = -1.2

Divide each side by '3'.
b = -0.4

Simplifying
b = -0.4