Find the value of x and y in the simultaneous equation: 3x + y = 21; xy = 30

By: |Published on: Jan 6|Categories: Mathematics WAEC| 0 comments

A. x = 3 or 7, y = 12 or 8
B. x = 6 or 1, y = 11 or 5
C. x = 2 or 5, y = 15 or 6
D. x = 1 or 5, y = 10 or 7

Correct Answer: Option C

C. x = 2 or 5, y = 15 or 6

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