3(r-1)-3(3x+y)=

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Solution for 3(r-1)-3(3x+y)= equation:


Simplifying
3(r + -1) + -3(3x + y) = 0

Reorder the terms:
3(-1 + r) + -3(3x + y) = 0
(-1 * 3 + r * 3) + -3(3x + y) = 0
(-3 + 3r) + -3(3x + y) = 0
-3 + 3r + (3x * -3 + y * -3) = 0
-3 + 3r + (-9x + -3y) = 0

Solving
-3 + 3r + -9x + -3y = 0

Solving for variable 'r'.

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

Add '3' to each side of the equation.
-3 + 3r + -9x + 3 + -3y = 0 + 3

Reorder the terms:
-3 + 3 + 3r + -9x + -3y = 0 + 3

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

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

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

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

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

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

Divide each side by '3'.
r = 1 + 3x + y

Simplifying
r = 1 + 3x + y

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