3-2[2-y]=7

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Solution for 3-2[2-y]=7 equation:


Simplifying
3 + -2[2 + -1y] = 7
3 + [2 * -2 + -1y * -2] = 7
3 + [-4 + 2y] = 7

Combine like terms: 3 + -4 = -1
-1 + 2y = 7

Solving
-1 + 2y = 7

Solving for variable 'y'.

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

Add '1' to each side of the equation.
-1 + 1 + 2y = 7 + 1

Combine like terms: -1 + 1 = 0
0 + 2y = 7 + 1
2y = 7 + 1

Combine like terms: 7 + 1 = 8
2y = 8

Divide each side by '2'.
y = 4

Simplifying
y = 4

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