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

cho x,y thuộc n thoả mãn x hia 3 dư 1,y chia 3 dư 2.hỏi x.y chia 3 có số dư bằng bao nhiêu
phong trào cần Vương diễn ra năm nào​
Simplifie la phrase suivante pour qu'elle utilise l'infinitif au lieu du subjonctif. 1. Il est naturel que j'aie mes propres opinions. a. Il est naturel d'avoir
The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. Step 1 of 2:
CaCO3 + 2HCl > CaCl2 + CO₂ + H₂O​
Show all work to identify the asymptotes and zero of the function f(x)=6x/x^2-36
Tell Me What Is Glottal Stop
What is released that causes the actin and myosin molecules to slide, contracting the sarcomere together?
Storrer Co. identifies the following activities that pertain to manufacturing overhead, for each activity, identify an appropriate cost driver. Activity
what are the two main types of sound like soundwave​