Question

Betty and Jim solved these simultaneous equations:
Find
solu
7 x - 2y = 2
3x + 4y - 8
(1)
Not
Betty multiplied equation (1) by 3 and equation (11) by
7. She subtracted to eliminate an unknown.
pra
Jim multiplied equation (1) by 2 and then added the
new equation to (ii).
Choose the correct statement:
a. Betty used an incorrect method.
b. Betty is correct in her method and Jim is incorrect.
c. Jim used a correct method and Betty is incorrect.
d. Both Betty and Jim used the correct method.
plis show working​

Answer 1

I have attached the answers option d