1.

Solution of the system of linear equations 3x - 2y = 0, 2x + y = 7 is

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ANSWER:

3x - 2y = 0

= 3x = 2y

= x = \frac{2}{3} y

2x + y = 7

= 2( \frac{2}{3} y) + y = 7

= \frac{4y}{3} + y = 7

= \frac{4y + 3y}{3} = 7

= 7y = 7 \times 3

= y = \frac{21}{7}

y = 3

x = \frac{2}{3} y = \frac{2}{3} \times 3 = 2

So, \: x = 2 \: and \: y = 3


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