solve the following sets of simultaneous equation
multiply kis karna padta hai yah Bhi Bata Dena easy language mein
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given in image above with step by step explanation
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Answer: Step-by-step explanation: 2x+y=5......................(1) 3x-y=5.......................(2) Adding equations (1) and (2) 2x+y=5 + 3x-y=5 ————— 5x=10 ∴x= 10 — 5 ∴x= 2 Substituting x=2 in equation (1) 2(2)x+y=5 ∴4+y=5 ∴y=5-4=1 ∴(x,y)= (2,1) is the solution for the given equation Is sum mein multiply nahin karna hai. Multiply un sums mein karte hein jahaan dono equation ke numbers ke beech mein itna difference ho ki agar ke equation ko multiply karenge to wo dusre equation ke koi ke number ki tareh ban jaana chahiye For e.g.) 2x+y=6; 4x-2y=4 Is sum mein hum first equation ko agar 2 se multiply karenge to woh, 4x+2y=12 ban jaata hai And then you can easily add the two equations and get the ans for x because +2 & -2 will get cancelled. Hope this helps.
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