200-20=5r

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Solution for 200-20=5r equation:


Simplifying
200 + -20 = 5r

Combine like terms: 200 + -20 = 180
180 = 5r

Solving
180 = 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
180 + -5r = 5r + -5r

Combine like terms: 5r + -5r = 0
180 + -5r = 0

Add '-180' to each side of the equation.
180 + -180 + -5r = 0 + -180

Combine like terms: 180 + -180 = 0
0 + -5r = 0 + -180
-5r = 0 + -180

Combine like terms: 0 + -180 = -180
-5r = -180

Divide each side by '-5'.
r = 36

Simplifying
r = 36

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