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

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


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

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

Combine like terms: 7 + 7 = 14
9 + -7[14 + -9y] = 0
9 + [14 * -7 + -9y * -7] = 0
9 + [-98 + 63y] = 0

Combine like terms: 9 + -98 = -89
-89 + 63y = 0

Solving
-89 + 63y = 0

Solving for variable 'y'.

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

Add '89' to each side of the equation.
-89 + 89 + 63y = 0 + 89

Combine like terms: -89 + 89 = 0
0 + 63y = 0 + 89
63y = 0 + 89

Combine like terms: 0 + 89 = 89
63y = 89

Divide each side by '63'.
y = 1.412698413

Simplifying
y = 1.412698413

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