12*-1=y

Solution for 12*-1=y equation:

Simplifying
12 * -1 = y

Multiply 12 * -1
-12 = y

Solving
-12 = 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.
-12 + -1y = y + -1y

Combine like terms: y + -1y = 0
-12 + -1y = 0

Add '12' to each side of the equation.
-12 + 12 + -1y = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -1y = 0 + 12
-1y = 0 + 12

Combine like terms: 0 + 12 = 12
-1y = 12

Divide each side by '-1'.
y = -12

Simplifying
y = -12