Question

What is the solution of the system defined by y = -x + 5 and 5x + 2y = 14?

Answer 1

y=5-x

so substituting y=5-x in 5x-2y=14, we get

5x-10+2x=14

=>  7x=24

=>    x=24/7  or  x=3.42

sub in y=5-x

y=5-3.42

y=1.58

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