1) For simultaneous equations in x and y.Dx = 49, Dy= -63, D=7, then w

1.	1) For simultaneous equations in x and y.Dx = 49, Dy= -63, D=7, then what is x?a) 7b) -7c)1/2d) 2@AliZainab92 or someone pls solve this doubt
Answer» ANSWER: $a) \: \: 7$ Step-by-step EXPLANATION: $dx = 49 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = \frac{dx}{d} = \frac{49 \times \: x }{7} \\ x = 7$

1) For simultaneous equations in x and y.Dx = 49, Dy= -63, D=7, then what is x?a) 7b) -7c)1/2d) 2@AliZainab92 or someone pls solve this doubt

Answer»

ANSWER:

$a) \: \: 7$

Step-by-step EXPLANATION:

$dx = 49 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = \frac{dx}{d} = \frac{49 \times \: x }{7} \\ x = 7$

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1) For simultaneous equations in x and y.Dx = 49, Dy= -63, D=7, then what is x?a) 7b) -7c)1/2d) 2@AliZainab92 or someone pls solve this doubt​

ANSWER:

Step-by-step EXPLANATION:

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1) For simultaneous equations in x and y.Dx = 49, Dy= -63, D=7, then what is x?a) 7b) -7c)1/2d) 2@AliZainab92 or someone pls solve this doubt