3(2r-1)+r=13

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Solution for 3(2r-1)+r=13 equation:


Simplifying
3(2r + -1) + r = 13

Reorder the terms:
3(-1 + 2r) + r = 13
(-1 * 3 + 2r * 3) + r = 13
(-3 + 6r) + r = 13

Combine like terms: 6r + r = 7r
-3 + 7r = 13

Solving
-3 + 7r = 13

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 + 7r = 13 + 3

Combine like terms: -3 + 3 = 0
0 + 7r = 13 + 3
7r = 13 + 3

Combine like terms: 13 + 3 = 16
7r = 16

Divide each side by '7'.
r = 2.285714286

Simplifying
r = 2.285714286

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