The sum of three consecutive terms x, y and z of an arithmetic progression is 45. if y=1/2(x+z), find the value of y.

y = 15

Step-by-step explanation:

x + y + z = 45 → (1)

Given

y = (x + z)

Multiply both sides by 2 to clear the fraction

2y = x + z ← substitute into (1)

2y + y = 45

3y = 45 ( divide both sides by 3 )

y = 15

if you use photomath right away it will give you the answer not like this app that you have to wait for people.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8