garrett8552 garrett8552
  • 03-12-2020
  • Mathematics
contestada

69,5)
)
Solve each system of equations by elimination
9. x + y = -5
x - y = 9

Respuesta :

oscar236
oscar236 oscar236
  • 03-12-2020

Answer:

(2, -7).

Step-by-step explanation:

x + y = -5

 x - y = 9           Adding, to eliminate y:

2x = 4

x = 2

Plug this into first equation:

2 + y = -5

y = -5 - 2

y = -7.

Answer Link

Otras preguntas

what is an object that helps explain ideas about the natural world
Lee has a jar of 100 pennies. She adds groups of 10 pennies to the jar . She adds 5 groups. What numbers does she say?
Darrel went to the mall and spent $41. He brought several t-shirts that act cost $12 and he brought 1 pair of socks for $5. How many t-shirts did Darel buy?
what is the unit fraction for 12/84
Which of the following statements best explains why the framers of the Constitution added the Bill of Rights? Select one: a. They were afraid that without a Bil
Solve each equation for the indicated variable T=an+b (solve for B)
List 3 equivalent ratios of 5/2
When exercising, you should A. work through any pain that you experience. B. plan to take in extra protein. C. avoid wasting time with a warm-up. D. plan to tak
How can the fiscal policies of a country influence individual finances?
Carrying capacity is _____. the ratio of predators to prey the number of populations in a specific area the number of organisms in a population the number of or