y-9=3(x+3)

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Solution for y-9=3(x+3) equation: 


Simplifying
y + -9 = 3(x + 3)

Reorder the terms:
-9 + y = 3(x + 3)

Reorder the terms:
-9 + y = 3(3 + x)
-9 + y = (3 * 3 + x * 3)
-9 + y = (9 + 3x)

Solving
-9 + y = 9 + 3x

Solving for variable 'y'.

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

Add '9' to each side of the equation.
-9 + 9 + y = 9 + 9 + 3x

Combine like terms: -9 + 9 = 0
0 + y = 9 + 9 + 3x
y = 9 + 9 + 3x

Combine like terms: 9 + 9 = 18
y = 18 + 3x

Simplifying
y = 18 + 3x

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