12=9y+11(-3y-7)

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Solution for 12=9y+11(-3y-7) equation:


Simplifying
12 = 9y + 11(-3y + -7)

Reorder the terms:
12 = 9y + 11(-7 + -3y)
12 = 9y + (-7 * 11 + -3y * 11)
12 = 9y + (-77 + -33y)

Reorder the terms:
12 = -77 + 9y + -33y

Combine like terms: 9y + -33y = -24y
12 = -77 + -24y

Solving
12 = -77 + -24y

Solving for variable 'y'.

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

Add '24y' to each side of the equation.
12 + 24y = -77 + -24y + 24y

Combine like terms: -24y + 24y = 0
12 + 24y = -77 + 0
12 + 24y = -77

Add '-12' to each side of the equation.
12 + -12 + 24y = -77 + -12

Combine like terms: 12 + -12 = 0
0 + 24y = -77 + -12
24y = -77 + -12

Combine like terms: -77 + -12 = -89
24y = -89

Divide each side by '24'.
y = -3.708333333

Simplifying
y = -3.708333333

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