gretchenglg gretchenglg
  • 02-12-2020
  • Mathematics
contestada

What number would you multiply the 2nd equation by in order to eliminate the y terms?
4x - 4y = 16
2x + y = 5

Respuesta :

jahzara06
jahzara06 jahzara06
  • 02-12-2020

Answer:

x=3

y=-1

Step-by-step explanation:

first multiply the 2nd row by 2 so you will get

4x-4y=16

4x+2y=10

then subtract the 2nd row from the first row and so you will get

-6y=6

then solve for y in the above equation

y=-1

then substitute y=-1 into any 2 equations .

i picked the first 1

4x-4 × -1=16

then solve for x .

you will get

x=3

Answer Link

Otras preguntas

hey can you please help me posted picture of question
Find the mean absolute deviation of the set of data 3,8,10,12,15
The distance on the number line from 5 to 12 equals 3x – 2. What is the value of x?
I need the answer please
Question 16 (Fill-In-The-Blank Worth 1 points) Yo tomo el sol en las ____________(shores) del Río de la Plata.
40 children from an after-school clubwent to matinee. This is 25%of the children club. How many children are in the club.
Can someone help me with this please
If 5.25 mL of an unknown HCl sample was titrated with 25.3 mL of a 0.00100 M solution of NaOH to its equivalence point, what is the initial concentration of th
Is the equation 3Br2+2Ga 2GaBr3 which of the following is not true
Diagnostic criteria for autism spectrum disorder do not include a. impairment in communication. b. restricted, repetitive, stereotyped behaviors. c. deficits in