Question

(i) प्रतिस्थापन विधि द्वारा हल करो 2x+y=21
3x+5y=49

Answer 1

Explanation:

sabse phle first equation se y ka maan nikalo or uss maan ko dusre equation me shift kro kisse aapka x nikle ayega then x ke value ko jo phle y ka maan nikala tha usme shift kro then answer aa jayge

hopefully it will be helpful to you