Y-1=-3(x-1)

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Solution for Y-1=-3(x-1) equation: 


Simplifying
Y + -1 = -3(x + -1)

Reorder the terms:
-1 + Y = -3(x + -1)

Reorder the terms:
-1 + Y = -3(-1 + x)
-1 + Y = (-1 * -3 + x * -3)
-1 + Y = (3 + -3x)

Solving
-1 + Y = 3 + -3x

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 + Y = 3 + 1 + -3x

Combine like terms: -1 + 1 = 0
0 + Y = 3 + 1 + -3x
Y = 3 + 1 + -3x

Combine like terms: 3 + 1 = 4
Y = 4 + -3x

Simplifying
Y = 4 + -3x

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