Y-1=3(x+7)

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Solution for Y-1=3(x+7) equation: 


Simplifying
Y + -1 = 3(x + 7)

Reorder the terms:
-1 + Y = 3(x + 7)

Reorder the terms:
-1 + Y = 3(7 + x)
-1 + Y = (7 * 3 + x * 3)
-1 + Y = (21 + 3x)

Solving
-1 + Y = 21 + 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 = 21 + 1 + 3x

Combine like terms: -1 + 1 = 0
0 + Y = 21 + 1 + 3x
Y = 21 + 1 + 3x

Combine like terms: 21 + 1 = 22
Y = 22 + 3x

Simplifying
Y = 22 + 3x

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