20x-y=5 x+5y=10 Nov 17 | Ahmad from Fremont, CA | 2 Answers | 0 Votes Mark favorite Subscribe Comment Comments Hi Ahmad; Please proofread this question. I think the equations may be incorrect. Nov 17 | Vivian L. i think x=1,96 and n=0,348 am i right dear professors Nov 17 | Ahmad from Fremont, CA it is a simultaneous equation Mam. thanks Nov 17 | Ahmad from Fremont, CA I understand it is simultaneous. I tried to resolve. I might be making a mistake, or perhaps the equations are copied incorrectly. Please re-check equations. Nov 17 | Vivian L. Comment
I understand it is simultaneous. I tried to resolve. I might be making a mistake, or perhaps the equations are copied incorrectly. Please re-check equations. Nov 17 | Vivian L.
20x-y=5 x+5y=10 100x-5y=25 x+5y=10 101x=35 x=35/101 substitute in second equation 35/101+5y=1010/101 5y=975 /101 y=195/101 What is the obsession with approximate answers when accurate ones are easily available? Nov 17 | Michael F. Comment Comments Yes, I noticed that and changed it before I submitted but somehow the previous answer is the one that got posted. Not sure how that happened. Nov 18 | Kay H. Comment
Yes, I noticed that and changed it before I submitted but somehow the previous answer is the one that got posted. Not sure how that happened. Nov 18 | Kay H.
20x-y=5 x=10-5y 20(10-5y)-y=5 200-100y-y=5 200-101y=5 -101y=5-200 -101y=-195 y=195/101=1.93 20x-1.93=5 20x=6.93 x=6.93/20 =0.347 Nov 17 | Kay H. Comment Comments 200-100y-y=5 is 200-101y=5 Nov 17 | Michael F. Comment
Comments