4-7[7-(9y-5)]=

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Solution for 4-7[7-(9y-5)]= equation:


Simplifying
4 + -7[7 + -1(9y + -5)] = 0

Reorder the terms:
4 + -7[7 + -1(-5 + 9y)] = 0
4 + -7[7 + (-5 * -1 + 9y * -1)] = 0
4 + -7[7 + (5 + -9y)] = 0

Combine like terms: 7 + 5 = 12
4 + -7[12 + -9y] = 0
4 + [12 * -7 + -9y * -7] = 0
4 + [-84 + 63y] = 0

Combine like terms: 4 + -84 = -80
-80 + 63y = 0

Solving
-80 + 63y = 0

Solving for variable 'y'.

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

Add '80' to each side of the equation.
-80 + 80 + 63y = 0 + 80

Combine like terms: -80 + 80 = 0
0 + 63y = 0 + 80
63y = 0 + 80

Combine like terms: 0 + 80 = 80
63y = 80

Divide each side by '63'.
y = 1.26984127

Simplifying
y = 1.26984127

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