4y-4=-9(y-1)

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Solution for 4y-4=-9(y-1) equation:


Simplifying
4y + -4 = -9(y + -1)

Reorder the terms:
-4 + 4y = -9(y + -1)

Reorder the terms:
-4 + 4y = -9(-1 + y)
-4 + 4y = (-1 * -9 + y * -9)
-4 + 4y = (9 + -9y)

Solving
-4 + 4y = 9 + -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.
-4 + 4y + 9y = 9 + -9y + 9y

Combine like terms: 4y + 9y = 13y
-4 + 13y = 9 + -9y + 9y

Combine like terms: -9y + 9y = 0
-4 + 13y = 9 + 0
-4 + 13y = 9

Add '4' to each side of the equation.
-4 + 4 + 13y = 9 + 4

Combine like terms: -4 + 4 = 0
0 + 13y = 9 + 4
13y = 9 + 4

Combine like terms: 9 + 4 = 13
13y = 13

Divide each side by '13'.
y = 1

Simplifying
y = 1

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