Caley637 Caley637

14-07-2019
Mathematics

contestada

What mistake did the student make?

What mistake did the student make class=

Respuesta :

marcthemathtutor marcthemathtutor

14-07-2019

Answer:

A

Step-by-step explanation:

if he had multiplied the 2nd equation by 9 throughout successfully, he would have gotten :

6x - y = 16 (multiply by 9)

54x - 9y = 144

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Аноним Аноним

14-07-2019

Answer:

(a) The error is in step 1.

See below.

Step-by-step explanation:

They did not multiply the 16 by 9.

Answer Link

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