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
exis [7]
3 years ago
12

Solve the system of equations

Mathematics
1 answer:
nekit [7.7K]3 years ago
8 0

Answer: x = 3 and y = 1

Step-by-step explanation:

y = - x + 4 ............... equation 1

y = x - 2 ............. equation 2

Solving the linear equation by substitution method , we have :

substitute equation 2 into equation 1 , that is

x - 2 = - x + 4

Add 2 to both sides , we have

x = -x + 4 + 2

Add x to both sides , we have

2x = 6

divide through by 2

x = 3

Substitute x = 3 into equation 2 to find the value of y , we have

y = x - 2

y = 3 - 2

y = 1

Therefore : x = 3 and y = 1

You might be interested in
Angle measure for 225
Alex73 [517]

Answer:

3.92699 radians

Step-by-step explanation:

the formula fro converting degrees into radians is quite simple as it is the following: 225° × π/180 = 3.927rad

if π=3.14 and 180=1/2 of a circle. than 3.92699 would be the answer

4 0
4 years ago
Evaluate k(4) for the function k(x)=18−2x
KiRa [710]

Answer:

k(4) = 10

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

k(x) = 18 - 2x

k(4) is x = 4

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                    k(4) = 18 - 2(4)
  2. Multiply:                               k(4) = 18 - 8
  3. Subtract:                              k(4) = 10
5 0
3 years ago
How to find the points of a line that is perpendicular to a line you only know the slope of
Lady bird [3.3K]

Answer:

Write the new equation in slope-intercept form.  Replace the old slope with the new slope.  Replace the y-intercept's value with a variable (b).

5 0
3 years ago
Read 2 more answers
Points for yall,<br><br>if you have discord let me know. I have a server I'm trying to build up<br>​
Katena32 [7]

Answer:

i dont but thanks for the points

Step-by-step explanation:

can i have brainlylist

6 0
3 years ago
Hence, or otherwise, simplify fully (x² + 4) - (x - 2)2
raketka [301]

Answer:

fully simplified answer: x^2-2x+8

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Apply the distributive property to factor out the greatest common factor.
    15·1 answer
  • You are planting a rectanglar garden. It's 5 feet longer than 3 times it's width. The area of the garden is 250 ft^2. Find the d
    14·1 answer
  • A large pizza at Palanzio’s Pizzeria costs $6.80 plus $0.90 for each topping. The cost of a large cheese pizza at Guido’s Pizza
    12·2 answers
  • Which of these is equialent to 4 to the power of 3
    12·2 answers
  • A bag contains 72 toffees. How many toffees can be stored in 122 such bags? Estimate the number of toffees to nearest tens.
    9·1 answer
  • Can you help me please?
    14·2 answers
  • What is the Slope from this equation? y = 0.75x - 5
    12·1 answer
  • What is the y-intercept of the graph?
    9·2 answers
  • There is a bag filled with 4 blue and 5 red marbles.
    12·1 answer
  • A job applicant estimates that his chance of passing a qualifying examination is , and his chance of being appointed if he does
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!