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
NeX [460]
2 years ago
10

Find the solution to the system of equations: x + 3y = 7 and 2x + 4y = 8

Mathematics
1 answer:
Akimi4 [234]2 years ago
7 0

Answer:

The solution to the system of equation is: (-2,3)

Step-by-step explanation:

We need to find the solution to the system of equations: x + 3y = 7 and 2x + 4y = 8

I am placing steps for each point given

1. Isolate x in the first equation:

First equation is:

x+3y=7

Isolating x:

x=7-3y

2. Substitute the value for x into the second equation:

Second equation is:

2x+4y=8

Putting value of x: x=7-3y

2(7-3y)+4y=8

3. Solve for y:

2(7-3y)+4y=8

Multiply 2 with terms inside the bracket

14-6y+4y=8

-2y=8-14

-2y=-6

y=-6/-2

y=3

So, we get value of y: y=3

4. Substitute y into either original equation:

Putting value of y: y=3 in equation 1

x+3y=7

x+3(3)=7

x+9=7

x=7-9

x=-2

So, we get value of x: x=-2

5. Write the solution as an ordered pair:

After solving the equation we get:

x = -2 and y = 3

The ordered pair is: (-2,3)

You might be interested in
Can someone please help me it's urgent!<br> Classify triangle ABC. Justify your classification.
NikAS [45]

Answer:it's an equilateral triangle

Step-by-step explanation:

Can I have brainliest I'm almost upgraded

4 0
3 years ago
An expert shot bits the target 95% of the time. What are the probabilities that he will miss the target: at least one time durin
Mkey [24]
If he hits the target 95% of the time, then you could say that he has a probability of 0.95, or 95% of hitting the target. Let p = the probability of hitting the target or p = 0.95. So you are interested that he misses the target at least once - this could be thought of as not getting a perfect score. So to get a perfect score, it is 0.95 for each target -- 0.95^15 for 15 targets is 0.464. Thus to miss at least one target he needs to NOT have a perfect score -- 1 - 0.464 = 0.536, or 53.6% of happening. Enjoy
3 0
3 years ago
What are the excluded values for m+4m+2=8m+2?
aliina [53]
That equation is the same as 3m=0, only m=0 works. Do you think they want you to say, all numbers but zero are excluded? Or is the equation different?
8 0
3 years ago
How to do these problems
Blababa [14]
What problems do you need help with I dosen't show???
4 0
3 years ago
2y=2(3)+4. Help me plzzzzz
lesya692 [45]

Answer:

y=5

Step-by-step explanation:

Get rid of the parenthesis by multiplying

2y=6+4

Add

2y=10

Divide

y=5

3 0
3 years ago
Read 2 more answers
Other questions:
  • Lynn asked six friends how many cars their parents own. She recorded 1, 1, 2, 2, 2, and 4 cars.
    14·2 answers
  • 0.09X+4=4.9 I need to solve the unknown
    15·1 answer
  • Simply this expression. Which like terms can she combine 12-4x+3
    10·1 answer
  • Please help!! look at the picture as well!!
    11·1 answer
  • Someone please help me with this geometry question
    15·2 answers
  • Pete has $2.67 in dimes and pennies.If he has $1.16 in pennies how many dimes does Pete have
    5·2 answers
  • Hi please help me look below
    9·1 answer
  • Help with this please
    11·1 answer
  • Help me please i need the lenght of yz . . . . . . . . . .. . . . . . .
    7·1 answer
  • A spinner is divided into 4 equal sectors that are colored green, red, yellow, and blue. The number of times the spinner lands o
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!