Question

2x – 5y = -3
-x + 2y = 3

i got: (-9,-3).
am i right?

Answer 1

yes ur rite!!!

Answer 2

okay thank you :)

Answer 3

2x - 5y = -3
- x + 2y = 3--> -x = -2y + 3 --> x = 2y - 3

now sub 2y - 3 in for x in the first equation
2(2y - 3) - 5y = - 3
4y - 6 - 5y = - 3
-y - 6 = - 3
-y = - 3 + 6
-y = 3
y = - 3

now sub - 3 in for y in either of original equations...
-x + 2y = 3
-x + 2(-3) = 3
-x - 6 = 3
-x = 6 + 3
-x = 9
x = -9

check...
2x - 5y = -3
2(-9) - 5(-3) = - 3
-18 + 15 = - 3
-3 = -3 (correct)

you are correct anthony...the answer is (-9,-3)

Answer 4

np:)