3(-1y-2)-7(-6y-9)=

Solution for 3(-1y-2)-7(-6y-9)= equation:

Simplifying
3(-1y + -2) + -7(-6y + -9) = 0

Reorder the terms:
3(-2 + -1y) + -7(-6y + -9) = 0
(-2 * 3 + -1y * 3) + -7(-6y + -9) = 0
(-6 + -3y) + -7(-6y + -9) = 0

Reorder the terms:
-6 + -3y + -7(-9 + -6y) = 0
-6 + -3y + (-9 * -7 + -6y * -7) = 0
-6 + -3y + (63 + 42y) = 0

Reorder the terms:
-6 + 63 + -3y + 42y = 0

Combine like terms: -6 + 63 = 57
57 + -3y + 42y = 0

Combine like terms: -3y + 42y = 39y
57 + 39y = 0

Solving
57 + 39y = 0

Solving for variable 'y'.

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

Add '-57' to each side of the equation.
57 + -57 + 39y = 0 + -57

Combine like terms: 57 + -57 = 0
0 + 39y = 0 + -57
39y = 0 + -57

Combine like terms: 0 + -57 = -57
39y = -57

Divide each side by '39'.
y = -1.461538462

Simplifying
y = -1.461538462