3(-1.2)-4=y

Solution for 3(-1.2)-4=y equation:

Simplifying
3(-1.2) + -4 = y

Multiply 3 * -1.2
-3.6 + -4 = y

Combine like terms: -3.6 + -4 = -7.6
-7.6 = y

Solving
-7.6 = y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
-7.6 + -1y = y + -1y

Combine like terms: y + -1y = 0
-7.6 + -1y = 0

Add '7.6' to each side of the equation.
-7.6 + 7.6 + -1y = 0 + 7.6

Combine like terms: -7.6 + 7.6 = 0.0
0.0 + -1y = 0 + 7.6
-1y = 0 + 7.6

Combine like terms: 0 + 7.6 = 7.6
-1y = 7.6

Divide each side by '-1'.
y = -7.6

Simplifying
y = -7.6