alleryx + y = 7 ଏବଂ x - y = 3 କୁ ଯୋଗ କଲେ କେଉଁ ଚଳରାଶିଟି ଅପସାରିତ ହୁଏ?
Aଉଭୟ
Bକୌଣସିଟି ନୁହେଁ
Cy
Dx
Answer & Solution
Correct answer: C. y
ସମୀକରଣଗୁଡ଼ିକୁ ଯୋଗ କଲେ +y ଏବଂ -y ପଦଗୁଡ଼ିକ ବାଦ୍ ପଡ଼ିଯାଆନ୍ତି।
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