Answer:
x = -4; y = -3
Step-by-step explanation:
2x - 5y = 7
3x - y = -9
Rewrite top equation. Multiply both sides of bottom equation by -5. Add equations. This eliminates y, and we solve for x.
2x - 5y = 7
(+) -15x + 5y = 45
----------------------------
-13x = 52
Divide both sides by -13.
x = -4
Substitute -4 for x in the first original equation and solve for y.
2x - 5y = 7
2(-4) - 5y = 7
-8 - 5y = 7
-5y = 15
y = -3
Answer: x = -4; y = -3
-5 =
Answer:
5
Step-by-step explanation:
Answer:
434.0 or 4.0 3.0 4.0
Step-by-step explanation:
hope it helps
Answer:
The simplest answer would just be 14:19
However the unsimplified answer is 1260:1710
Answer:
39
Step-by-step explanation:
65/5=13
13x3=39
