If y =2.5 x +4 and 15x-2 =40 then y=?

A 36
B 28
C 22
D 11

Correct Answer: 11

15x - 2 = 40⇨ 15x = 42 y = 2 .5x + 4⇨ 6y = 15x + 24⇨ 6y = 42 + 24 = 66⇨ y = 11
Bissoy MCQ

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