Y=(1/3)x-1,5x=9y

Y=(1/3)x-1

5x=9y
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1 Answer

Rewrite the equations:

y=⅓x-1, 3y=x-3⇒

x-3y=3⇒5x-15y=15,

5x-9y=0

(5x-15y)-(5x-9y)=15-0=15,

-15y+9y=15,

-6y=15, y=-15/6=-(3/3)(5/2)=-5/2.

x=3y+3=-15/2+3=-9/2.

SOLUTION: x=-9/2, y=-5/2.
by Top Rated User (1.2m points)

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