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

Nous __________ un sandwich en ville.(manger)
Use the diagram of the right triangle above and round your answer to the nearest hundredth. If b is 23 ft and tan A is 1.0, what is a?
Which is NOT one of Aristotle’s three modes of persuasion? Ethos Logos Pathos Versos
Read this excerpt from Extremely Loud and Incredibly Close. There was a lot of stuff that made me panicky, like suspension bridges, germs, airplanes, fireworks
What quadrilateral has 1 pair of parallel sides
Can someone please help me with this?
Two similar triangles are shown on the coordinate grid xyz
what does an object in equilibrium has a net force of .
The metric system is a decimalized system of measurement used exclusively in the united states. a. True b. False
Jessica is comparing her bank statement to her check register, and the ending balances don't seem to match. To check her register for transposing errors, she ne