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
Zielflug [23.3K]
3 years ago
5

7x+5y=-13 -2x=7y+26 Solve by elimination

Mathematics
2 answers:
RSB [31]3 years ago
5 0

Answer:

Point form : (1,-4)

Equation for, : x=1, y=-4

Step-by-step explanation: Add the fractions in order to solve for the first variable. Plug this vale into the other equations in order to solve for the remaining variables.

Hope this helps you out! ☺

11Alexandr11 [23.1K]3 years ago
4 0

Answer:

Step-by-step explanation:

7x + 5y = -13 ....multiply by 2

-2x - 7y = 26 .....multiply by 7

-------------------------

14x + 10y = -26 (result of multiplying by 2)

-14x - 49y = 182 (result of multiplying by 7)

-----------------------add

-39y = 156

y = -156/39

y = -4

7x + 5y = -13

7x + 5(-4) = -13

7x - 20 = -13

7x = -13 + 20

7x = 7

x = 7/7

x = 1

check...

-2x = 7y + 26

-2(1) = 7(-4) + 26

-2 = -28 + 26

-2 = -2 (correct)...it checks out

answer is : x = 1 and y = -4 or (1,-4)

You might be interested in
a blueprint for a fence has a scale of 1:40. the fence in the blueprint is 6 in. what is the length of the actual fence ?
marin [14]
240 in or 20 ft; Since the scale is 1:40, Every 1 spot on the scale is equal to 40. So 6 times 40 equals 240 in. or 20 ft 
8 0
2 years ago
Read 2 more answers
Gloria decides to buy 4 ferns, 2 Palms, 10 Lilies and 8 shrubs. To show the total
Vadim26 [7]

Answer:

Total Plants = 4F + 2P + 10L+ 8S

Total Plants = 2(2F + P + 5L+ 4S) --- Distributive property

Step-by-step explanation:

Given

Ferns = 4

Palms = 2

Lillies = 10

Shrubs = 8

Required

Show the total cost of plants as an expression

Shorten it using the distributive property

First, represent Ferns with F; Palms with P; Lilies with L and Shrubs with S;

So, 4 Ferns = 4F

2 Palms = 2P

10 Lilies = 10L

8 Shrubs = 8S

Total Plants = Summation of the above parameters

Total Plants = 4F + 2P + 10L+ 8S

The above expression represents the total plants bought;

Now, to apply the distributive property; we simply look for a common factor;

In this case, the common factor is 2;

So, Total Plants = 4F + 2P + 10L+ 8S becomes

Total Plants = 2(\frac{4F}{2} + \frac{2P}{2} + \frac{10L}{2}+ \frac{8S}{2})

Total Plants = 2(2F + P + 5L+ 4S)

7 0
2 years ago
Identify the slope and y-intercept of the graph of the line: 4x + 2y = −12?
ivann1987 [24]

Answer:

y=-6+2x

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
PLZZZ I BEEEGGG YOU!!!!
artcher [175]

Answer:

C is true :):)

6 0
2 years ago
Read 2 more answers
A produce store sold 63 red apples If the ratio of red apples to green apples sold was 7:2 what is the amount of green apples so
Slav-nsk [51]

Answer:

18

Step-by-step explanation:

ratio of red apples to green apples is 7:2

red apples = 63

First, divide 63 with 7

63/7 = 9

Next, multiply the number gotten with the ratio number for green apples

9 x 2 = 18

18 green apples were sold

~

5 0
3 years ago
Read 2 more answers
Other questions:
  • I have no idea what im doing someone help pls! due soon
    6·2 answers
  • PLZZZ ANSWER QUICK!!!
    15·1 answer
  • -3+3r=12 can u solve this using algebra??
    14·1 answer
  • Which equation correctly applies the distributive property?
    6·1 answer
  • Jack's annual salary increased by 10 percent and Arnie's decreased by 5 percent. If their annual salaries were equal in 2011 Arn
    15·1 answer
  • I NEED HELP ASAP !!!!!!!!!!
    10·2 answers
  • Find two numbers the quotient is between 75÷4
    10·1 answer
  • What is the factored form of -1/2(32x - 40) - (20x - 4)? ​
    9·2 answers
  • Jack wanted to measure the weight of his luggage at the airport before departure. He was surprised to see that it weighed 23.6 k
    11·1 answer
  • Which is the y-intercept of the graph of f ?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!