3(-1)+(-7)=y

Solution for 3(-1)+(-7)=y equation:

Simplifying
3(-1) + (-7) = y

Multiply 3 * -1
-3 + (-7) = y
-3 + -7 = y

Combine like terms: -3 + -7 = -10
-10 = y

Solving
-10 = 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.
-10 + -1y = y + -1y

Combine like terms: y + -1y = 0
-10 + -1y = 0

Add '10' to each side of the equation.
-10 + 10 + -1y = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -1y = 0 + 10
-1y = 0 + 10

Combine like terms: 0 + 10 = 10
-1y = 10

Divide each side by '-1'.
y = -10

Simplifying
y = -10