8-9[9-(5y-7)]=

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Solution for 8-9[9-(5y-7)]= equation:


Simplifying
8 + -9[9 + -1(5y + -7)] = 0

Reorder the terms:
8 + -9[9 + -1(-7 + 5y)] = 0
8 + -9[9 + (-7 * -1 + 5y * -1)] = 0
8 + -9[9 + (7 + -5y)] = 0

Combine like terms: 9 + 7 = 16
8 + -9[16 + -5y] = 0
8 + [16 * -9 + -5y * -9] = 0
8 + [-144 + 45y] = 0

Combine like terms: 8 + -144 = -136
-136 + 45y = 0

Solving
-136 + 45y = 0

Solving for variable 'y'.

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

Add '136' to each side of the equation.
-136 + 136 + 45y = 0 + 136

Combine like terms: -136 + 136 = 0
0 + 45y = 0 + 136
45y = 0 + 136

Combine like terms: 0 + 136 = 136
45y = 136

Divide each side by '45'.
y = 3.022222222

Simplifying
y = 3.022222222

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