Question

Write the following sets in the roaster from:
A = {x : x ∈ R, 2x + 11 = 15}

Answer 1

Given that: A = {x : x ∈ R, 2x + 11 = 15}

∴ 2x + 11 = 15

⇒ 2x = 15 – 11

⇒ 2x = 4

⇒ x = 2

Hence, A = {2}