13=r+-6

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Solution for 13=r+-6 equation:


Simplifying
13 = r + -6

Reorder the terms:
13 = -6 + r

Solving
13 = -6 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
13 + -1r = -6 + r + -1r

Combine like terms: r + -1r = 0
13 + -1r = -6 + 0
13 + -1r = -6

Add '-13' to each side of the equation.
13 + -13 + -1r = -6 + -13

Combine like terms: 13 + -13 = 0
0 + -1r = -6 + -13
-1r = -6 + -13

Combine like terms: -6 + -13 = -19
-1r = -19

Divide each side by '-1'.
r = 19

Simplifying
r = 19

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