-4y-(-0.3+6y)=12.3

Solution for -4y-(-0.3+6y)=12.3 equation:

Simplifying
-4y + -1(-0.3 + 6y) = 12.3
-4y + (-0.3 * -1 + 6y * -1) = 12.3
-4y + (0.3 + -6y) = 12.3

Reorder the terms:
0.3 + -4y + -6y = 12.3

Combine like terms: -4y + -6y = -10y
0.3 + -10y = 12.3

Solving
0.3 + -10y = 12.3

Solving for variable 'y'.

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

Add '-0.3' to each side of the equation.
0.3 + -0.3 + -10y = 12.3 + -0.3

Combine like terms: 0.3 + -0.3 = 0.0
0.0 + -10y = 12.3 + -0.3
-10y = 12.3 + -0.3

Combine like terms: 12.3 + -0.3 = 12
-10y = 12

Divide each side by '-10'.
y = -1.2

Simplifying
y = -1.2