![AlicR63701](/avatars/39560.jpg)
AlicR63701
30.01.2020 •
Mathematics
Arrange the steps to solve this system of linear equations in the correct sequence.
x + y = -2
2x – 3y = -9
a. subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x.
b) substitute the value of x in the first equation (x + y = -2) to get y = 1.
c) the solution for the system of equations is (-3, 1).
d) x = -15
e) the solution for the system of equations is (-15, 13).
f) add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x.
g) x = -3
h) substitute the value of x in the first equation (x + y = -2) to get y = 13.
j) multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.
basically put them in order. ?
Solved
Show answers
More tips
- T Travel and tourism Lost in the Catacombs: What to Do?...
- L Leisure and Entertainment What to Bring on a Hike? Essential Items to Pack for a Safe and Enjoyable Adventure...
- S Style and Beauty How Are Eyelash Extensions Applied? All Your Questions Answered...
- F Family and Home Tender Care for Your Parquet: Is it Possible to Clean Parquet?...
- S Society and Politics Is It Fact or Fiction? Let s Talk About Anton Chekhov s Pseudonym...
- S Sport Playing Bowling: Rules and Advice for Novices...
- C Computers and Internet How to Properly Repartition a Hard Drive?...
- A Auto and Moto What Is the Cost of Customs Clearance for a Car in Russia?...
- L Leisure and Entertainment Should You Buy a Ceramic Knife?...
- C Computers and Internet How to easily and quickly disable Firebug in Gmail and Google Docs...
Ответ:
The answer is given below.
Step-by-step explanation: The given system of linear equations is :
Multiplying equation (i) by 3, we have
Adding equations (ii) and (iii), we get
Substituting the value of 'x' in equation (i), we get
Thus, the solution set is (-3, 1).
Therefore, the correct steps in ascending order to solve the above system of equations are given below:
Step 1: (J) Multiply the first equation by 3: 3(x + y) = 3(-2) ⇒ 3x + 3y = -6.
Step 2: (F) Add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x.
Step 3: (G) x = -3.
Step 4: (B) Substitute the value of x in the first equation (x + y = -2) to get y = 1.
Step 5: (C) The solution for the system of equations is (-3, 1).
Ответ:
F Add the two equations and solve for x
G x = -3
B Substitute the value of x in the first equation, y = 1
C the solution is (-3, 1)
Ответ: