3[2-4(7+4y)]=9

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Solution for 3[2-4(7+4y)]=9 equation:


Simplifying
3[2 + -4(7 + 4y)] = 9
3[2 + (7 * -4 + 4y * -4)] = 9
3[2 + (-28 + -16y)] = 9

Combine like terms: 2 + -28 = -26
3[-26 + -16y] = 9
[-26 * 3 + -16y * 3] = 9
[-78 + -48y] = 9

Solving
-78 + -48y = 9

Solving for variable 'y'.

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

Add '78' to each side of the equation.
-78 + 78 + -48y = 9 + 78

Combine like terms: -78 + 78 = 0
0 + -48y = 9 + 78
-48y = 9 + 78

Combine like terms: 9 + 78 = 87
-48y = 87

Divide each side by '-48'.
y = -1.8125

Simplifying
y = -1.8125

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