turciosnorma32 turciosnorma32
  • 05-03-2021
  • Mathematics
contestada

please can you give the answer of this, 8x+5y=23 -8x+9y=-19

Respuesta :

kica226 kica226
  • 05-03-2021
8X+5Y=23
8X=23-5Y

-8X+9Y= -19 multiple all by -1
8X-9Y=19
8x=23-5y
Plug that in
23-5Y-9Y=19
-14Y=19-23
-14Y= -4
Y=1

8X=23-5Y
8X=23-5•1
8X=23-5
8X=18
X=18/8
X=9/4
Answer Link

Otras preguntas

can someone help me 3y-20=8y
The least dense layers of the Earth are found at the-A. outer edgeB. inside the middleC. inner core
How did Seamus Heaney incorporate Old English poetry elements in this modern translation?
I have 6 surfaces 2 of my surfaces are smaller than the other I can stand up tall what shape am i
Which practice does the Montreal Protocol aim to reduce?
Abby's husband was critically injured in a car accident. he survived, but abby had to care for him at home for several months before he was able to regain norma
how does wilbur escape from his pen?
I cant figure this out! please help. solve for a. 3a+11.5
Know the 3 basic types of water pollution and be able to identify examples of each.
Please help convert .. 1 yard of sand weights 1.13 tons , I paid $45.79 per ton what do I charge for a yard ?