17=r+9

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Solution for 17=r+9 equation:


Simplifying
17 = r + 9

Reorder the terms:
17 = 9 + r

Solving
17 = 9 + 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.
17 + -1r = 9 + r + -1r

Combine like terms: r + -1r = 0
17 + -1r = 9 + 0
17 + -1r = 9

Add '-17' to each side of the equation.
17 + -17 + -1r = 9 + -17

Combine like terms: 17 + -17 = 0
0 + -1r = 9 + -17
-1r = 9 + -17

Combine like terms: 9 + -17 = -8
-1r = -8

Divide each side by '-1'.
r = 8

Simplifying
r = 8

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