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

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


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

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

Combine like terms: 3 + 3 = 6
7 + -3[6 + -3y] = 0
7 + [6 * -3 + -3y * -3] = 0
7 + [-18 + 9y] = 0

Combine like terms: 7 + -18 = -11
-11 + 9y = 0

Solving
-11 + 9y = 0

Solving for variable 'y'.

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

Add '11' to each side of the equation.
-11 + 11 + 9y = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 9y = 0 + 11
9y = 0 + 11

Combine like terms: 0 + 11 = 11
9y = 11

Divide each side by '9'.
y = 1.222222222

Simplifying
y = 1.222222222

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