Question

Suppose x = 2y - 7. What is x, if y = 5?
a 0
b 1
c 3
d 5

Answer 1

x = 2y-7

x= 2(5)-7
x = 10 -7
x = 3

Answer 2

c 3

IF you replace the y with 5, then you follow the equation. 5 times 2 equals 10 - 7 equals 3