12=5r-23+2r

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Solution for 12=5r-23+2r equation:


Simplifying
12 = 5r + -23 + 2r

Reorder the terms:
12 = -23 + 5r + 2r

Combine like terms: 5r + 2r = 7r
12 = -23 + 7r

Solving
12 = -23 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
12 + -7r = -23 + 7r + -7r

Combine like terms: 7r + -7r = 0
12 + -7r = -23 + 0
12 + -7r = -23

Add '-12' to each side of the equation.
12 + -12 + -7r = -23 + -12

Combine like terms: 12 + -12 = 0
0 + -7r = -23 + -12
-7r = -23 + -12

Combine like terms: -23 + -12 = -35
-7r = -35

Divide each side by '-7'.
r = 5

Simplifying
r = 5

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