Question

Which of the following equations is equivalent to y = 2x + 1?

A. 2x + y = 1
B. x + 2y = 1
C. -2x + y = 1
D. -2x - y = -1

Answer 1

Explanation:

Answer 2

none of these are right but the answer is 2x - y = -1.

D would be right but there is a negative sign in front of 2x.

Explanation: