375=100+.50(600-500r)

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Solution for 375=100+.50(600-500r) equation:


Simplifying
375 = 100 + 0.50(600 + -500r)
375 = 100 + (600 * 0.50 + -500r * 0.50)
375 = 100 + (300 + -250r)

Combine like terms: 100 + 300 = 400
375 = 400 + -250r

Solving
375 = 400 + -250r

Solving for variable 'r'.

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

Add '250r' to each side of the equation.
375 + 250r = 400 + -250r + 250r

Combine like terms: -250r + 250r = 0
375 + 250r = 400 + 0
375 + 250r = 400

Add '-375' to each side of the equation.
375 + -375 + 250r = 400 + -375

Combine like terms: 375 + -375 = 0
0 + 250r = 400 + -375
250r = 400 + -375

Combine like terms: 400 + -375 = 25
250r = 25

Divide each side by '250'.
r = 0.1

Simplifying
r = 0.1

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