
Kenneth S. answered 01/31/18
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Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018
you have an equation with two variables; its graph is a straight line.
you may choose any number for s, and determine a corresponding value of R, thus obtaining an ordered pair.
There are infinitely many ordered pairs constituting a straight line.

Arturo O.
Student,
You need 2 independent equations to do elimination, but you have only 1 equation in the problem statement.
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01/31/18
Merissa Y.
01/31/18