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

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


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

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

Combine like terms: 9 + 7 = 16
9 + -2[16 + -9y] = 0
9 + [16 * -2 + -9y * -2] = 0
9 + [-32 + 18y] = 0

Combine like terms: 9 + -32 = -23
-23 + 18y = 0

Solving
-23 + 18y = 0

Solving for variable 'y'.

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

Add '23' to each side of the equation.
-23 + 23 + 18y = 0 + 23

Combine like terms: -23 + 23 = 0
0 + 18y = 0 + 23
18y = 0 + 23

Combine like terms: 0 + 23 = 23
18y = 23

Divide each side by '18'.
y = 1.277777778

Simplifying
y = 1.277777778

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