3x-9=r

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Solution for 3x-9=r equation: 


Simplifying
3x + -9 = r

Reorder the terms:
-9 + 3x = r

Solving
-9 + 3x = r

Solving for variable 'x'.

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

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

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

Divide each side by '3'.
x = 3 + 0.3333333333r

Simplifying
x = 3 + 0.3333333333r

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