Math, asked by rohaan2004ali, 11 months ago

can anyone help me with this

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Answers

Answered by ayaanpoke
4

Step-by-step explanation:

see the attachment...

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Answered by madhuringahukap4uf4a
0

Answer:

 {x}^{2}  +  {y}^{2}  = 25 \\ squaring \: on \: both \: sides \\ x + y = 5 \:  -  -  -  - (1) \\ y = x - 7 \\ y - x =  - 7 \\  - x + y =  - 7 \\ x - y = 7 -  - (multiplying \: both \: sides \: by \: { - })  -  -  -  - (2) \\ adding \: (1) \: and \: (2) \\  \:  \: \:  \:   \:  \: x + y = 5 \\  +  \:  \:  x - y = 7 \\  \:  \:  \:  =  =  =  =  =  =  =  \\  \:  \: \:  \:  2x \: \:  \:  \:  \:  \:  \:   = 12 \\ x =  \frac{12}{2}  \\ x = 6 \\ putting \: x = 6 \: in \: (1) \\ x + y = 5 \\ 6 + y = 5 \\ y = 5 - 6 \\ y =  - 1

.: Solution is (x, y) = (6, -1)

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