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

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


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

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

Combine like terms: 9 + 7 = 16
4 + -9[16 + -3y] = 0
4 + [16 * -9 + -3y * -9] = 0
4 + [-144 + 27y] = 0

Combine like terms: 4 + -144 = -140
-140 + 27y = 0

Solving
-140 + 27y = 0

Solving for variable 'y'.

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

Add '140' to each side of the equation.
-140 + 140 + 27y = 0 + 140

Combine like terms: -140 + 140 = 0
0 + 27y = 0 + 140
27y = 0 + 140

Combine like terms: 0 + 140 = 140
27y = 140

Divide each side by '27'.
y = 5.185185185

Simplifying
y = 5.185185185

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