Answer:
No
Step-by-step explanation:
Substitute 3 in for y
7y-12
7(3)-12
21-12
9
She is not correct, the correct answer would be 9
2.5
when you 5x automatically cancels, and 7.5 / 3 is 2.5
14.
Plug 3 in for y:
= 4(3) + 8 - 2(3)
= 12 + 8 - 6
= 14.
L 107°
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