7r+18s-9r=

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Solution for 7r+18s-9r= equation:


Simplifying
7r + 18s + -9r = 0

Reorder the terms:
7r + -9r + 18s = 0

Combine like terms: 7r + -9r = -2r
-2r + 18s = 0

Solving
-2r + 18s = 0

Solving for variable 'r'.

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

Add '-18s' to each side of the equation.
-2r + 18s + -18s = 0 + -18s

Combine like terms: 18s + -18s = 0
-2r + 0 = 0 + -18s
-2r = 0 + -18s
Remove the zero:
-2r = -18s

Divide each side by '-2'.
r = 9s

Simplifying
r = 9s

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