Saved Bookmarks
| 1. |
Solve for x and y:\(\frac{3}x+\frac{2}y=12\),\(\frac{2}x+\frac{3}y=13\) |
|
Answer» The given equations are: \(\frac{3}x+\frac{2}y=12\).....(i) Multiplying (i) by 3 and (ii) by 2 and subtracting (ii) from (i), we get: 9/x - 4/x = 36 – 26 ⇒ 5/x = 10 ⇒x = 5/10 = 1/2 Now, substituting x = 1/2 in (i), we have 6 + 2/y = 12 ⇒ 2/y = 6 ⇒ y = 1/3 Hence, x = 1/2 and y = 1/3 . |
|