Question

6x+3y=12
2x-y=2
By elimination and substitution method

Answer 1

Answer:-

$6x + 3y = 12 - - - 1 \\ 2x - y = 2 - - - - - 2 \times 3 \\ \\ 6x + 3y = 12 \\ 6x - 3y = 6 \\ - - - - - - - - \\ \: \: \: \: \: \: \: \: \: 6y = 6 \\ \: \: \: \: \: \: \: \: y = 1 \\ from - 1 \\ 6x + 3y = 12 \\ 6x = 12 - 3 \\ 6x = 9 \\ x = \frac{9}{6} \\ \\ x = \frac{3}{2} \\ \\ therefore \: \\ x = \frac{3}{2} \: \: and \: \: y = 1$

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