Math, asked by PragyaTbia, 1 year ago

दिलेलं एकसामयिक समीकरण क्रेमरचया पदधतीने सोडवा: x + 2y = -1 ; 2x - 3y = 12

Answers

Answered by veerukhugar
0

Hey mate here we go

x + 2y =  - 1 ..............(1)\\ 2x - 3y = 12 ................(2)\\ now \: add \: of \: eq \: 1 \: and\: 2 \\ x + 2y =  - 1 \\ 2x - 3y = 12 \\  \\ 3x - y = 11 \\  - y = 11 - 3x \\ y = 3x - 11.............(3) \: put \: this \: eq \: 1 \\ i.e \: x + 2y =  - 1 \\ x + 2 \times(3x - 11)  =  - 1 \\ x + 6x - 22 =  - 1 \\ 7x - 22 =  - 1 \\ 7x =  - 1 + 22 \\ 7x = 21 \\ x =  \frac{21}{7}  \\ x = 3.................(4) \\ nw \: put it \: in eq (3) \\ y = 3 \times 3 - 11 \\ y = 9 - 11 \\ y =  - 2 \\ </p><p>

I hope this will help you

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Answered by vini785
0
Hope it helps you....
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