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
alexandr402 [8]
3 years ago
15

13. Find the solution to the following system of equations using any method: 4x - y = 3 -4x + y = -3

Mathematics
1 answer:
forsale [732]3 years ago
3 0

Start by writing out the system of equations.

  • 4x - y = 3
  • -4x + y = -3

The easiest way to solve this system of equations is the elimination method. This is because both equations contain opposites of each other that you can cancel out.

Add the system of equations together. After adding, everything cancels out. 4x + (-4x) = 0 ; -y + y = 0 ; 3 + (-3) = 0.

You are left with the equation of 0 = 0. Since this is a TRUE statement, this means that there are infinitely many solutions to this system of equations.

If you were left with a false statement, for example 4 = 0, then the answer would be "no solution".

Another way to solve this system of equations is by the substitution method. This method works best if you are given a system of equations with one variable clearly defined.

For example, the system of equations could be:

  • 4x - y = 3
  • y = 3x + 4

y is equal to 3x + 4, so you could easily substitute y into the first equation. The elimination method wouldn't be the best choice because the system of equations are in the standard form Ax + By = C.

Generally any system of equations in the standard form are easier to solve using the elimination method. Hope this helped, good luck!

You might be interested in
Question below asap please.
docker41 [41]
Function number one , the graphing seems good
8 0
2 years ago
How many sides does a regular polygon have if each exterior angle measures<br> 20?
Masteriza [31]

Answer:

18 sides

Step-by-step explanation:

Each exterior angle of a regular polygon = 20 deg. So the polygon has 360/20 = 18 sides

7 0
3 years ago
Will give brainliest and please show work
daser333 [38]
This will help u.............

4 0
3 years ago
Read 2 more answers
The triangle shown is classified as
koban [17]

Answer:

b. Right, isosceles

Step-by-step explanation:

right because it has a right angle at the top corner

isosceles because two sides of the triangle are equal to each others

5 0
3 years ago
A submarine go 132.58 m to reach a resting depth of 700 meters below sea level. What was its original depth ?
r-ruslan [8.4K]
The original depth is 567.42
5 0
3 years ago
Other questions:
  • Cate and elena were playing cards
    9·1 answer
  • The quotient of 2.6 and -2.6 is
    13·2 answers
  • 2x+3y=12 complete the missing value in the solution to the equation
    12·1 answer
  • Adam is buying a hot air balloon for 19,000 with a down payment of 5,000. The bank approved a simple interest flat rate loan for
    15·1 answer
  • Lucy drank 6 liters of water after 2 days. How many liters of water did she drink after 6 days?
    12·1 answer
  • I need help with this math question
    6·1 answer
  • There’s more options but what’s the answer for now
    10·1 answer
  • What is the best way of choosing a sample to statistically represent a population? Why?
    11·1 answer
  • Suppose you have a right triangle with side lengths 26, 24, and 10. Which lengths
    9·1 answer
  • WILL MAKE BRAINLIEST!!Determine if the two triangles are congruent if they are state the postulate or theorem that provides they
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!