opetimmy210 opetimmy210
  • 04-01-2020
  • Mathematics
contestada

find the value of 2x-yi fx+y=8and4x-y=22​

Respuesta :

frika
frika frika
  • 09-01-2020

Answer:

10

Step-by-step explanation:

Given

[tex]x+y=8\\ \\4x-y=22[/tex]

Add these two equations:

[tex]x+y+4x-y=8+22\\ \\5x=30\\ \\x=6[/tex]

Substitute it into the first equation:

[tex]6+y=8\\ \\y=8-6\\ \\y=2[/tex]

Then

[tex]2x-y=2\cdot 6-2=12-2=10[/tex]

Answer Link

Otras preguntas

Find the range of the function. ƒ(x) = 2x^2 + 7
Using the amino acid codon chart, what will happen to this protein sequence if the mutation shown occurs?Original sequence mRNA: CAG GGA GCA UUAMutated sequence
Why was the orchestra trimmed down in the viennese period?
Geo-search streams are used to help you find tweets and twitter conversations relevant to your brand that are happening in:
What are accurate statements about the events of September 11, 2001?
For which health condition would a dietician recommend consuming foods rich in iron and Vitamin C?
who help me is a genius
Which century saw the development of etching?
PLZ HELP ASAP CIRCLES
An agribusiness investor is weighing viable investment options. Which of the following opportunities would a financial adviser be LEAST likely to recommend base