Help PLZ.

Question

Which step could you use to start solving the system of equations below?
x + y = 3
-3x - 2y = -7

Group of answer choices
A. Multiply -3x - 2y = -7 by 2 and subtract it from x + y = 3

B. All of the above.

C. Multiply x + y = 3 by 3 and add it to -3x - 2y = -7

D. Add x + y = 3 to -3x - 2y = -7

Answer 1

Simplest way would be to multiply the first by 2, then add
Should be able to do it in your head
-x = -1
x = 1
mentally into first: y = 2