3(r-1)=6

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Solution for 3(r-1)=6 equation: 


Simplifying
3(r + -1) = 6

Reorder the terms:
3(-1 + r) = 6
(-1 * 3 + r * 3) = 6
(-3 + 3r) = 6

Solving
-3 + 3r = 6

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 + 3 + 3r = 6 + 3

Combine like terms: -3 + 3 = 0
0 + 3r = 6 + 3
3r = 6 + 3

Combine like terms: 6 + 3 = 9
3r = 9

Divide each side by '3'.
r = 3

Simplifying
r = 3

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