Question

Solve the simultaneous equations 13x – 6y = 20, 7x + 4y = 18

1 point

x = 2, y = 1

x = 4, y = 8

x = 6, y = 1

x = 2, y = 4

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Answer 1

Step-by-step explanation:

X=20+6y/13

Substitute in the second in the second eq

7(20+6y/13)+4y=18

140+42y/13+4y=18

140+42y+52y=234

94y=234-140

y=94/94

Therefore y=1

X=20+6×1/13

X=26/13

Therefore X=2

Answer 2

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