y+17=5x
y-5x-9
How would you solve this solution
2007-02-07 02:26:00 · 4 answers · asked by danielle 2 in Science & Mathematics ➔ Mathematics
By the addition method:
-5x+y=-17
-5x+y=9
Multiply the second equation by -1:
-5x+y=-17
5x-y=-9
=======
0x+0y=-26
No solution!
By substitution method:
y=5x-17
y-5x=9
5x-17-5x=9
0x-17=9
0x=-26
No solution!
Solve by graphing method:
y=5x-17
y=5x+9
5x-17=5x+9
0x=26
No solution!
I hope this helps! Unless I am wrong, I think this question needs to be clarified better.
2007-02-07 03:09:20 · answer #1 · answered by Anonymous · 4⤊ 0⤋
You need to clarify your problem... the second line is not an equations (y-5x-9) and needs to equal something. Neither - can be an = or the equations would conflict, so I'm not sure what your question really is. To solve this, we need two independent (and non-conflicting) equations since we have 2 unknown variables.
Please clarify for a better answer :)
2007-02-07 10:32:00 · answer #2 · answered by disposable_hero_too 6 · 3⤊ 0⤋
y + 17= 5x
17 = 5x - y
17 / 5x = y
3.4 = x
y + 17 = 5(3.4)
y + 17 = 17
y = 17 - 17
y = 0
y - 5x - 9
0 - 5(3.4) - 9
0 - 17 - 9
= -26
PROOF:
if y = 0 and x = 3.4
0 + 17 = 5 (3.4)
17 = 17
2007-02-07 10:42:20 · answer #3 · answered by krodgibami 5 · 1⤊ 0⤋
1y + 17 =5x
subtract 17 from 5
= -12
then divide -12 and 1y
its like 12 over one or one over 12 i dont konw lol
i have a C in math
2007-02-07 10:30:54 · answer #4 · answered by Rachelle♥ 2 · 1⤊ 1⤋