{8x - 5y = 8
{24x - 15 = 32
a. (8, 32)
b. (5 / 4, -2)
c. (3, 4)
d. no solution
2007-12-04 00:04:04 · 3 answers · asked by . 1 in Science & Mathematics ➔ Mathematics
Multyply first equation by -3 on both sides.
-24x+15y=-24.
Now add.
0=8.
Which can't be true.
So, its d), no solution.
I assume 2nd equation is
23x-15y=32.
2007-12-04 00:12:53 · answer #1 · answered by yljacktt 5 · 2⤊ 1⤋
start solving from second equation
24x - 15 = 32
24x = 32 +15
24x = 47
x = 47/24
put this value into first equation to get y value
8(47/24) - 5y = 8
376/24 - 5y = 8
-5y = 8 - (376/24)
-5y = 8 - (94/6)
-5y = 8 - (47/3)
-5y = - 45/3
-5y = -15
y = 3
therefor the answer well be x= 47/24 and y=3
according what you question says
the answer well be d. no solution
2007-12-04 08:16:28 · answer #2 · answered by Rayan Ghazi Ahmed 4 · 1⤊ 1⤋
- 24x + 15y = - 24
24x - 15y = 32-----ADD
d .NO SOLUTION
2007-12-04 08:33:39 · answer #3 · answered by Como 7 · 1⤊ 1⤋