3y-4(y-3)=3-9(y-2)

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Solution for 3y-4(y-3)=3-9(y-2) equation:


Simplifying
3y + -4(y + -3) = 3 + -9(y + -2)

Reorder the terms:
3y + -4(-3 + y) = 3 + -9(y + -2)
3y + (-3 * -4 + y * -4) = 3 + -9(y + -2)
3y + (12 + -4y) = 3 + -9(y + -2)

Reorder the terms:
12 + 3y + -4y = 3 + -9(y + -2)

Combine like terms: 3y + -4y = -1y
12 + -1y = 3 + -9(y + -2)

Reorder the terms:
12 + -1y = 3 + -9(-2 + y)
12 + -1y = 3 + (-2 * -9 + y * -9)
12 + -1y = 3 + (18 + -9y)

Combine like terms: 3 + 18 = 21
12 + -1y = 21 + -9y

Solving
12 + -1y = 21 + -9y

Solving for variable 'y'.

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

Add '9y' to each side of the equation.
12 + -1y + 9y = 21 + -9y + 9y

Combine like terms: -1y + 9y = 8y
12 + 8y = 21 + -9y + 9y

Combine like terms: -9y + 9y = 0
12 + 8y = 21 + 0
12 + 8y = 21

Add '-12' to each side of the equation.
12 + -12 + 8y = 21 + -12

Combine like terms: 12 + -12 = 0
0 + 8y = 21 + -12
8y = 21 + -12

Combine like terms: 21 + -12 = 9
8y = 9

Divide each side by '8'.
y = 1.125

Simplifying
y = 1.125

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