12r-8+12+r=43

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Solution for 12r-8+12+r=43 equation:


Simplifying
12r + -8 + 12 + r = 43

Reorder the terms:
-8 + 12 + 12r + r = 43

Combine like terms: -8 + 12 = 4
4 + 12r + r = 43

Combine like terms: 12r + r = 13r
4 + 13r = 43

Solving
4 + 13r = 43

Solving for variable 'r'.

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

Add '-4' to each side of the equation.
4 + -4 + 13r = 43 + -4

Combine like terms: 4 + -4 = 0
0 + 13r = 43 + -4
13r = 43 + -4

Combine like terms: 43 + -4 = 39
13r = 39

Divide each side by '13'.
r = 3

Simplifying
r = 3

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