amaqueda
amaqueda amaqueda
  • 02-04-2022
  • Mathematics
contestada

Find the solution of the system of equations.
8x – 2y = -30
–9x + 4y = 18

Respuesta :

Аноним Аноним
  • 02-04-2022

Step-by-step explanation:

8x – 2y = -30 } ×2

16x - 4y = -60

–9x + 4y = 18

___________

7x=-42

x=-6

8(-6)-2y=-30

-2y=-18

y=9

Answer Link
annie413
annie413 annie413
  • 02-04-2022

Answer:

(-6,-9)

Step-by-step explanation:

The quickest way is to solve with elimination. Multiply the top equation by 2.

2(8x – 2y = -30)

16x-4y=-60

16x-4y=-60

–9x + 4y = 18

7x=-42

x=-6

8x – 2y = -30

8(-6) – 2y = -30

-48-2y=-30

-2y=18

y=-9

Answer Link

Otras preguntas

Sales tax is 7%. What is the tax on a book that costs $12? $1.90 $0.70 $1.40 $0.84
Explain what soil looks like, how it feels, and how it holds water. Describe some uses for different types of soil. What types of soil hold more water? What kin
The high-latitude climate is _____________ the equator. closest to farthest from
A triangle has sides with lengths of 12 inches, 16 inches, and 20 inches. Is it a right triangle? I need help now Sorry, incorrect... The correct answer is: Go
Explain what is meant by the topic, the main idea, and the purpose of the writing?
which European power establish the enconmienda system in the Americas ​
For which value of x is the equation 4x + 24 = 8x + 2x true?
What is the average rate of change between: X=1 and x=2? ___ X=2 and x=3? ___ X=3 and x=4? ___
5n2+100=30n , need help explaining how you would work this out
When did Charles Lyell describe how earth changes slowly over time