Question

solve the simultaneous equation
$\frac { 1 } { 7 x } + \frac { 1 } { 6y } = 3 \\ \frac { 1 } { 2 x } - \frac { 1 } { 3 y } = 5$
Wrong answer will be reported
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Answer 1

Answer:

1/7x + 1/6y = 3 ------(1)

1/2x - 1/3y = 5 -------(2)

Multiplying (1) by 42 and (2) by 6, we get,

6x + 7y = 126 --------(3)

3x - 2y = 30 -----------(4)

Solving (3) and (4), we get,

x = 14 and y = 6

Its easy! Now try doing it yourself...