9-4[9-(7y-3)]=

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Solution for 9-4[9-(7y-3)]= equation:


Simplifying
9 + -4[9 + -1(7y + -3)] = 0

Reorder the terms:
9 + -4[9 + -1(-3 + 7y)] = 0
9 + -4[9 + (-3 * -1 + 7y * -1)] = 0
9 + -4[9 + (3 + -7y)] = 0

Combine like terms: 9 + 3 = 12
9 + -4[12 + -7y] = 0
9 + [12 * -4 + -7y * -4] = 0
9 + [-48 + 28y] = 0

Combine like terms: 9 + -48 = -39
-39 + 28y = 0

Solving
-39 + 28y = 0

Solving for variable 'y'.

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

Add '39' to each side of the equation.
-39 + 39 + 28y = 0 + 39

Combine like terms: -39 + 39 = 0
0 + 28y = 0 + 39
28y = 0 + 39

Combine like terms: 0 + 39 = 39
28y = 39

Divide each side by '28'.
y = 1.392857143

Simplifying
y = 1.392857143

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