Question

PC: 4x - 3y = 16; 6x + 5y = 62.​

Answer 1

Answer:

$4x - 3y = 16 .........(1)\\ 6x + 5y = 62.........(2) \\ \\ multiplying \: eq.(1) \: by \: 6 \: and \\ eq.(2) \: by \: 4 \\ we \: get..... \\ 24x - 18y = 96........(3) \\ 24x + 20y = 248......(4) \\ now \: eq.(3) - eq.(4) \\ we \: get..... \\ - 38y = - 152 \\ y = \frac{ - 152}{ - 38} \\ y = 4 \\ substituting \: the \: value \: of \: y \: in \: eq.(1) \\ we \: get..... \\ 4x - 12 = 16 \\ 4x = 28 \\ x = \frac{28}{4} \\ x = 7$

your answer is (7,4)

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