9r+3r-2=46

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Solution for 9r+3r-2=46 equation:


Simplifying
9r + 3r + -2 = 46

Reorder the terms:
-2 + 9r + 3r = 46

Combine like terms: 9r + 3r = 12r
-2 + 12r = 46

Solving
-2 + 12r = 46

Solving for variable 'r'.

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

Add '2' to each side of the equation.
-2 + 2 + 12r = 46 + 2

Combine like terms: -2 + 2 = 0
0 + 12r = 46 + 2
12r = 46 + 2

Combine like terms: 46 + 2 = 48
12r = 48

Divide each side by '12'.
r = 4

Simplifying
r = 4

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