milkshakeianpresiden milkshakeianpresiden
  • 24-10-2019
  • Mathematics
contestada

5x-y=-1 + -5x+3y=25 for two variable elimination quiz

Respuesta :

kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 27-10-2019

Answer:

[tex](\frac{11}{5},12)[/tex]

Step-by-step explanation:

The system is

5x-y=-1

-5x+3y=25

We the two equations to get:

[tex]5x+-5x+-y+3y=25+-1[/tex]

We simplify t get

[tex]2y=24[/tex]

We divide both sides by 2 to get:

[tex]y=12[/tex]

We now substitute y=12 in to the top equation to get:

[tex]5x-12=-1[/tex]

[tex]5x=11[/tex]

[tex]x=\frac{11}{5}[/tex]

Answer Link

Otras preguntas

how do you solve for sinxcos2x+cosxsin2x=0 ?
How did geography affect the development of Greek Civilization?
Which type of seismic waves produces the most severe ground movement?
Todd is using the benchmark 1/2 to compare fractions. Which statement is not correct. A 5/6 less than a 1/2
on a fishing trip camie and her friends covered 77 miles at an average speed of 28 miles per hour.How long did this trip take?
Is congress made of 100. Judges and 435 representatives
Is 6/5 greater or less than 3/3
Which type of seismic waves produces the most severe ground movement?
Which type of seismic waves produces the most severe ground movement?
What percent of 48 is 2.4