r(x)=250-7x

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Solution for r(x)=250-7x equation: 


Simplifying
r(x) = 250 + -7x

Multiply r * x
rx = 250 + -7x

Solving
rx = 250 + -7x

Solving for variable 'r'.

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

Divide each side by 'x'.
r = 250x-1 + -7

Simplifying
r = 250x-1 + -7

Reorder the terms:
r = -7 + 250x-1

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