Question

Solve 5x-4y+8=0,7x+6y-9=0 anupaat samanupa

Answer 1

Step-by-step explanation:

$5x - 4y = ( - 8) \: \: \: \: \: \: \: \: eq {}^{n} 1\\ 7x + 6y = 9\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: eq {}^{n} 2\\ multipying \: eq {}^{n} 1 \: by \: 6 \: and \: eq {}^{n} 2 \: \: \: by \: 4 \\ 30x - 24y= ( - 48) \: \: \: \: \: eq {}^{n}3 \\ 28x + 24y = 36 \: \: \: \: \: \: \: \: \: \: \: \: \: eq {}^{n}4 \\ adding \: eq {}^{n}3 \: and \: eq {}^{n}4 \\ 58x = ( - 12) \\ x = \frac{ - 12}{58 } \\ x = \frac{ - 6}{29}$

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