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

Determine if each compound is an alkane, alkene, alkyne, or aromatic compound. This compound has the formula C H 3 C H C (C H 3) C H 2 C H 2 C H 2 C H 3. There
Solve equation for the given variable
Use the power series method to solve the given initial-value problem. (Format your final answer as an elementary function.) (x − 1)y'' − xy' + y = 0, y(0) = −7
6 ANS.SE weer...........The fact that he is very old man; he still leads very active life ​
PLEASE HELP URGENT Which of the following was not a reason for the success of the colonial independence movement? (5 points) Question 11 options: 1) Lack of peo
A washing machine was marked 60% above its cost price . the shopkeeper allows a discount of 25% . calculate his gain%.​
we.... five lessons yesterday
A model car 30 cm in length how many inches long is it
Graph x^2/49+y+1^2/4=1
Can you guys give an answer for this