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
I am Lyosha [343]
3 years ago
7

Substitution method for 7x-2y=1 & x-2y=1

Mathematics
1 answer:
RUDIKE [14]3 years ago
6 0
We want to use the Substitution method to solve
7x - 2y = 1          (1)
x - 2y = 1           (2)

From equation (1), obtain
2y = 7x - 1          (3)

Substitute (3) into (2).
x - (7x - 1) = 1
-6x + 1 = 1
-6x = 0
x = 0

From (3), obtain
2y = 7*0 - 1 = -1
y = -1/2

Answer: (0, -1/2)  or x=0, y= -1/2.

You might be interested in
‼️⚠️ANSWER QUICK PLEASE⚠️‼️
Aneli [31]

Answer:

THE ANSWER IS C

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
5(y -2)+3(4 -y)<br> Show and explain work <br> (Distributive property)
NikAS [45]

Answer:

Step-by-step explanation:

5 ( y - 2 ) + 3 ( 4 - y )

multiply 5 by both y and -2

5y - 10 + 3 ( 4 - y )

multiply 3 by by both 4 and -y

5y - 10 + 12 - y

hope this helps

7 0
4 years ago
Read 2 more answers
An auction company sold 15 handheld computers last month. the final prices​ (in dollars) at which the items sold are as follows.
matrenka [14]
Hi,

a. construct a stem and leaf plot

Ans

20: 5

21: 3 7

22: 9 9 9 9

23: 1 6

24: 5 7 7 8 8

25: 2

 

b. summarize what this plot tells you about the data

Ans

This plot tells that most numbers of computers were sold at prices in the range of $220-229 and $240-249. For other prices, sales were lower.

Hoped I Helped


5 0
4 years ago
Read 2 more answers
What is the answer to (-8x)÷(-2)
pav-90 [236]
(-8x) ÷ (-2)
= (-4x) ÷ (-1)
= 4x ÷ 1 = 4x
3 0
4 years ago
Help me with this plz!?!? I will mark brainliest!!!
Troyanec [42]
If the temp is 12f and changes by -26f
Is 38f
3 0
3 years ago
Other questions:
  • Leilani rides her bike for exercise and drinks 70 ounces of water each day in order to stay hydrated before her morning ride she
    11·1 answer
  • How many 1/10s in 2 3/5
    9·1 answer
  • 2times 5 to the power of 2
    15·1 answer
  • The area of a right triangle is 336 cm². The base of the right triangle is 48 cm.
    14·1 answer
  • Raul and his friends each of whom weighs 1/20 of a ton
    11·1 answer
  • What does x equal if 5x+6=2x+15
    10·2 answers
  • The linear function graphed below represents Brenda’s monthly cell phone bill based on the number of hours she uses. What is her
    13·1 answer
  • HELP PLEASE!!
    5·1 answer
  • I need it ASAP. Solve it please!!<br><br><br> {z}^{3} - 8i = 0​
    10·1 answer
  • a family originally bought a home for $273,830. Now the home’s value is 30% higher than that. What is the value of the home now?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!