16-06-2020
Mathematics

contestada

solve system by substitutition or elimination.
9x-8x=9
-18x+16y=-18

Respuesta :

mhanifa mhanifa

16-06-2020

Answer:

1. 9x-8y=9

2. -18x+16y= -18 ⇒ -9x+8y= -9 ⇒ 9x-8y=9

as we see both equations are same, it means the lines overlap and there is infinite number of solutions

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