dakiaddaidai dakiaddaidai
  • 12-01-2020
  • Mathematics
contestada

What is the solution to this system of equations? Negative 3 x + 5 y = negative 2. 3 x + 7 y = 26. NEED FAST TAKING UNIT TEST 40 points

Respuesta :

darkspeed
darkspeed darkspeed
  • 12-01-2020

3x + 5y = -2

3x + 7y = 26

Subtract first equation from second

2y = 28

y = 14

Plug it in

x = -24

Answer Link
ghanami
ghanami ghanami
  • 12-01-2020

Answer:

Step-by-step explanation:

-3 x + 5 y = - 2  ...(1)

3 x + 7 y = 26....(2)

(1)+(2) : 12y =24

y=24/12=2

put this value in (1) or (2) : 3x +7(2) = 26

3x=26-14

3x = 12

x=12/3=4

Answer Link

Otras preguntas

How to Simplify 243^1.2
Robert bought a used car for $1,500. If the sales tax is 5% what will the total that Robert had to pay for the car
Photosynthesis is a process in which _______ energy is converted to _______ energy.
I need the area of each sector in the 3 circle. Answers in term of pie . 11,14,17
What important idea from Thomas Malthus inspired Darwin?
The nine different classes of vertebrates include a. four fish classes and amphibians, reptiles, birds, whales and mammals. b. four fish classes and amphibians, r
“You can earn money by tutoring for $8 per hour and by walking dogs for $7.50 per hour. You have 15 h available to work. What is the greatest number of hours yo
Can you help me with this problem?
Plants often enter dormancy a. when rainfall is abundant. b. just before they form flowers. c. during winter. d. in the spring
Determine if the following tables from a lineAr equation if so identify the slope otherwise write non linear