Schelmandrakesjeni Schelmandrakesjeni

03-12-2016
Mathematics

contestada

What is the solution to this system: y=2x+3 and -4x+2y=6

No Solutions
Infinite Solutions
(2,4)
(3,5)

Respuesta :

jimthompson5910 jimthompson5910

03-12-2016

-4x+2y = 6
-4x+2(2x+3) = 6 ... replace y with 2x+3
-4x+4x+6 = 6
0x+6 = 6
0+6 = 6
6 = 6

The last equation is always true regardless of what you pick for x. So there are infinitely many solutions.

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