Given a + b = 1, find the value of 2a + 2b. Two solutions are presented below. Only
one is correct, even though both yield the correct answer. Choose the correct choice from the following answers: A) 3 B) 5 C) 4 D) 2 E) 1
Because a + b = 1,   2a + 2b = 2(a + b) = 2 × 1 = 2.   correct answer 2
<result>D</result>
Given a + b = 1, find the value of 2a + 2b. Two solutions are presented below. Only
one is correct, even though both yield the correct answer.