emmass15
emmass15 emmass15
  • 02-03-2021
  • Mathematics
contestada

1. What is the solution of the system
{3x - y = 14
{4x + y = 21 ?
A (−5, 3)
B (4, −2)
C (5, 1)

Respuesta :

surjithayer10otahza surjithayer10otahza
  • 02-03-2021

Answer:

C

Step-by-step explanation:

3x-y=14

4x+y=21

add

7x=35

x=35/7=5

4×5+y=21

y=21-20=1

so (5,1 ) is the solution.

Answer Link

Otras preguntas

Evaluate the integral -7x³ x³ +1 Note: Use an upper-case "C" for the constant of integration. I dx
It has been estimated that 72.7% of alcoholics need professional help to stop drinking. What is the probability that a random alcoholic can kick the habit witho
what's the difference between coplanar forces and resultant forces?​
What is adolescence? ​
Which of the following is a density-independent factor that affects population size? 1. Limited space 2. Presence of parasites 3. Natural disaster 4. Competitio
This is confusion please help
Lila and mick have pets. lila's pet has 6.73 toy bones. mick's pet has 5 times the many toy bones lila has. how many bones does mick's pet have?
pls help Enter the equation for the graph.
Quickbooks online accountant firm users can use the quickbooks online advanced desktop app to access what types of client subscriptions?.
What is the ph of a peach with a [ –oh] = 3.2 × 10 –11 m?