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
sdas [7]
3 years ago
12

Find the solution of this system of equations 2x-2y=-12 4x-7y=-15

Mathematics
1 answer:
ad-work [718]3 years ago
6 0
2x - 2y = -12
- 2y = -2x - 12
y = x + 6

4x - 7 (x + 6) = -15
4x - 7x - 42 = -15
-3x - 42 = -15
-3x = 27
x = -9

y = -9 + 6
y = -3

(-9 , -3) is the solution
You might be interested in
How do I solve for -31 -8r = -3(5r -6)
Dennis_Churaev [7]
Our current equation is:
-8r -31 = -3(5r -6)
To solve for this, we need to get r on one side of the equation and then simplify if needed.
On the right side of the equation, we have a pending Distributive Property, which is when you multiply the number/variable outside of the parenthesis by all numbers/variables in the parenthesis.
Let's simplify this Distributive Property to help understand our equation better.
-3(5r -6)
Multiply -3 by each number/variable separately (unless they are already being multiplied, like 2x, 1/2x, etc).
-3(5r) + -3(-6).
-3(5r) = -15r
-3(-6) = 18 (both negatives need to be in parenthesis to keep a product as negative, and if you do not multiply them in that way, you will end up with a positive product).
Your equation now is:
-8r -31 = -15r + 18
Add 15r to both sides to get r on one side.
7r -31 = 18 is now our current equation.
Add 31 to both sides to get 7r by itself.
7r = 49 is now our equation.
r is still being multiplied by 7, so we need to do the opposite of multiplying by 7.
Divide both sides by 7.
r = 7.
I hope this helps!
8 0
3 years ago
2. Given the function f : x -> |x+8|, find the possible values of x when the image is 3.
Harman [31]

Answer:

f (x)=11

Step-by-step explanation:

f (x)= x + 8

f (3)= (3 +8)

=f(x) =11

**replace the x with a variable which is 3

3 0
3 years ago
To convert temperatures from degrees Celsius to degrees Fahrenheit, you can use the function F(x)=95x+32 where x is the temperat
iogann1982 [59]

9514 1404 393

Answer:

  F(x) = (9/5)x -459.67

Step-by-step explanation:

F(C(x)) = 9/5(x -273.15) +32

F(C(x)) = (9/5)x -459.67 . . . . . simplify

5 0
2 years ago
Simplify the expression
kozerog [31]
10[(6 + 4) / 2]
10[10/2]
10 * 5
50 <==
8 0
2 years ago
Consider the triangle
svet-max [94.6K]

Answer:

Im confused what your trying to get at is there a picture or something

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • A winery has a vat with two pipes leading to it. The inlet pipe can fill the vat in 3 hours, while the outlet pipe can empty it
    12·1 answer
  • Y varies directly with x, and y = 7 when x = 2. What is the value of y when x = 5?
    8·1 answer
  • PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!
    10·1 answer
  • What inequality is represented by this graph. A. X&gt;6 b.x&lt;_6 c. X&lt;6 D. X&gt;_6
    13·1 answer
  • PLEASE HELP I WILL AWARD THE BRAINLIEST Given: AC=AB; AB=BX; CY=XD
    13·1 answer
  • If <img src="https://tex.z-dn.net/?f=%285x-2%29%5E2%3D%20ax%5E2%20-%20bx%20%2Bc" id="TexFormula1" title="(5x-2)^2= ax^2 - bx +c"
    6·2 answers
  • kaelyne has 14 coins that have a value of $1.20. she only has dimes and nickeles. how many nickels does kaelyne have?( ill upvot
    5·1 answer
  • It has been determined that 60% of the people in a certain midwest city who are responsible for preparing the evening meal have
    10·1 answer
  • A 6 pack of batteries cost $7.80. How much is 1 battery?​
    12·2 answers
  • The width of Abby's swimming pool is 24 feet. What is equal to 24 feet?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!