8r+5r=112-r

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Solution for 8r+5r=112-r equation:


Simplifying
8r + 5r = 112 + -1r

Combine like terms: 8r + 5r = 13r
13r = 112 + -1r

Solving
13r = 112 + -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
13r + r = 112 + -1r + r

Combine like terms: 13r + r = 14r
14r = 112 + -1r + r

Combine like terms: -1r + r = 0
14r = 112 + 0
14r = 112

Divide each side by '14'.
r = 8

Simplifying
r = 8

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