Question

3x+y=30 & 2x+5y=33 by cross mulitipicantion method

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Answer 1

Answer:

$6x + 2y = 60 \\ 6x + 15y = 99 \\ - 13x = - 39 \\ x = 3 \\ 3 \times 3 + y = 30 \\ 9 + y = 30 \\ y = 21$

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