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Lana71 [14]
4 years ago
6

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

Mathematics
1 answer:
alina1380 [7]4 years ago
4 0

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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