joshuaastallworth joshuaastallworth
  • 11-03-2022
  • Mathematics
contestada

If two equations are 3x + 2y = 14; 5x + 3y = 12, then the value of
5x – y is

Respuesta :

ganjilaya2019
ganjilaya2019 ganjilaya2019
  • 11-03-2022

Answer:

-124

Step-by-step explanation:

3x + 2y = 14 (×3) → 9x + 6y = 42

- → x = -18

5x + 3y = 12 (×2) → 10x + 6y = 24

3(-18) + 2y = 14

-54 + 2y = 14 → 2y = 14 + 54 = 68 → y = 68/2 = 34

5x - y = 5(-18) - 34 = -90 - 34 = -124

Answer Link

Otras preguntas

What is the product??
What is the sum of the first 20 terms of the series 3 + 14 + 25 + 25 + 36 +
Which kingdom includes autotrophic and heterotrophic, unicellular and multicellular organisms? Group of answer choices Animalia Fungi Plantae Protista Flag this
P3-17 Estructura 1: Gustos son gustos (Practice it!)
BRAIN WORKOUT CHALLENGE*❓~~~~~~~~~~~~~~~~~~~~~~~*These are 15 things which we see daily, correct the spelling ...**01. Egbindinatl**02. Evtlesnioi**03. Miet**04
I need an answer for a quiz please ASAP
the basement has an area of 600 square feet the width of the basement is 2/3 length FAST I CANT FIND ONE ANSWER FOR THIS
The Oakville High School Marching Band sold gift wrap to earn money for a band trip. Solid color gift wrap sells for $3.50 per roll and printed gift wrap sells
The ages of nine people in an elevator were as follows: 17, 27, 2, 9, 48, 22, 65, 17, 22. What is the mode of the data? Type a numerical answer in the space pro
Find the exact value of sin (pi/3 + pi)