200=2000-200r

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Solution for 200=2000-200r equation:


Simplifying
200 = 2000 + -200r

Solving
200 = 2000 + -200r

Solving for variable 'r'.

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

Add '200r' to each side of the equation.
200 + 200r = 2000 + -200r + 200r

Combine like terms: -200r + 200r = 0
200 + 200r = 2000 + 0
200 + 200r = 2000

Add '-200' to each side of the equation.
200 + -200 + 200r = 2000 + -200

Combine like terms: 200 + -200 = 0
0 + 200r = 2000 + -200
200r = 2000 + -200

Combine like terms: 2000 + -200 = 1800
200r = 1800

Divide each side by '200'.
r = 9

Simplifying
r = 9

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