1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
monitta
3 years ago
8

Solve the system of equations using the substitution method. 2x+y=8 y=x-1

Mathematics
1 answer:
Vsevolod [243]3 years ago
4 0

Answer:

x=3

Step-by-step explanation:

If we know that y=x-1, we can just substitute it and replace y with (x-1)

so 2x+y=8 becomes:

2x+(x-1)=8 and we simplify that into:

3x-1=8, add 1 on both sides to make it:

3x=9, divide 3 on both sides

x=3

You might be interested in
(just for fun) If You Have all of the answers and if all of them is Correct, Ill mark Brainliest!! Good Luck And Enjoy!:>
mylen [45]

1) 31.4                                        2) 162

3) 621                                        4) 4.80

5) 2                                            6) 1.25

7) 330                                        8) 5560

9) 8.6                                        10) 96.7

11) 90                                        12) 2800

13) 1.81                                      14) 92

15) 51.0                                     16) 64.8

17) 830                                      18)8.40

3 0
3 years ago
Read 2 more answers
Can you use the ASA Postulate or the AAS Theorem to prove the triangles congruent? (1)
Ber [7]

Answer:

asa only because the two triangles are facing each other like a reflection making them congruent

3 0
3 years ago
What is the total cost of $ 2.95 notebook plus 5 %
nordsb [41]
First, you convert 5% to decimal. For your info, percents are always equal to 100. So, you divide 5 by a 100, which gives you 0.05. Then, you multiply 2.95 by 0.05. 2.95 x 0.05 is 0.1475 which is about 0.15. Then, you add 0.15 to 2.95. The total cost of a $2.95 notebook plus 5% is about $3.10.

5 0
4 years ago
How to compare rates and ratios
Leviafan [203]
Ratios don't have to be "per" something, while rates are "per" something. 

Ratios compare 2 or more values, as well as rates. 
6 0
3 years ago
Which expressions are equivalent to 1−2x−1.7 ?
siniylev [52]

Step-by-step explanation:

if there are no typos, then the second and the fourth answers are correct.

1 - 1.7 = -0.7 or -2×0.35

-2x = -2(x)

8 0
3 years ago
Other questions:
  • A group of people were given a personality test to determine if they type a or type b
    14·2 answers
  • Solving Inequalities<br><br>Algebra 1​
    8·2 answers
  • Find the range and interquality for 5,9,6'8'7
    12·2 answers
  • Can anybody help me on all three plz it's due tm ??!!!!
    14·1 answer
  • This is a 3 question thing! HELP!
    14·1 answer
  • Nia's bag weighs 5-sixths of the maximum weight allowed for bags on an airplane. The maximum weight allowed is 45 pounds. What i
    9·1 answer
  • Help pls pls pls pls
    10·1 answer
  • What is the body of water that was constructed the great lakes to atlantic ocean?
    11·1 answer
  • Manolo and Annalisa make handbags. Manolo made 16 handbags the first day and 12 each day after
    9·1 answer
  • What is the answer for this problem I need help!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!