2-9[9-(3y-7)]=

Solution for 2-9[9-(3y-7)]= equation:

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

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

Combine like terms: 9 + 7 = 16
2 + -9[16 + -3y] = 0
2 + [16 * -9 + -3y * -9] = 0
2 + [-144 + 27y] = 0

Combine like terms: 2 + -144 = -142
-142 + 27y = 0

Solving
-142 + 27y = 0

Solving for variable 'y'.

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

Add '142' to each side of the equation.
-142 + 142 + 27y = 0 + 142

Combine like terms: -142 + 142 = 0
0 + 27y = 0 + 142
27y = 0 + 142

Combine like terms: 0 + 142 = 142
27y = 142

Divide each side by '27'.
y = 5.259259259

Simplifying
y = 5.259259259