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Betty and Jim solved these simultaneous equations:Findsolu7 x - 2y = 23x + 4y - 8(1)NotBetty multiplied equation (1) by 3 and equation (11) by7. She subtracted to eliminate an unknown.praJim multiplied equation (1) by 2 and then added thenew 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 |
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