9(-4)+7(-4)=y

Solution for 9(-4)+7(-4)=y equation:

Simplifying
9(-4) + 7(-4) = y

Multiply 9 * -4
-36 + 7(-4) = y

Multiply 7 * -4
-36 + -28 = y

Combine like terms: -36 + -28 = -64
-64 = y

Solving
-64 = 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.
-64 + -1y = y + -1y

Combine like terms: y + -1y = 0
-64 + -1y = 0

Add '64' to each side of the equation.
-64 + 64 + -1y = 0 + 64

Combine like terms: -64 + 64 = 0
0 + -1y = 0 + 64
-1y = 0 + 64

Combine like terms: 0 + 64 = 64
-1y = 64

Divide each side by '-1'.
y = -64

Simplifying
y = -64