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
timurjin [86]
4 years ago
11

Elimination method for -4x-2y=-12 4x+8y=-24

Mathematics
2 answers:
yan [13]4 years ago
8 0

\underline{+\left\{\begin{array}{ccc}-4x-2y=-12\\4x+8y=-24\end{array}\right}\ \ |\text{add both sides of equations}\\.\ \ \ \ \ \ \ 6y=-36\ \ \ \ |:6\\.\ \ \ \ \ \ \ \ \ y=-6\\\\\text{substitute the value of y to the second equation}\\\\4x+8(-6)=-24\\4x-48=-24\ \ \ |+48\\4x=24\ \ \ \ |:4\\x=6

Answer: x = 6, y = -6 → (6, -6)

Aleksandr-060686 [28]4 years ago
3 0

-4x-2y=-12

4x+8y=-24

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

6y = -36

y = -6

Substitute y = -6 into -4x-2y=-12

-4x-2(-6) = -12

-4x + 12 = -12

-4x = -24

x = 6

Answer

x = 6 and y = -6

You might be interested in
Im willing to give 20 points maybe even more
Thepotemich [5.8K]

Answer:

Equations are

20c + 10m = 495..............(1)

8c + 1m = 178.5.................(2)

Now ,  equation (2) * 10 = 80c + 10m = 1785...........(3)

So, Eq. (3) -  Eq(1) =

80c + 10m - 20c - 10m = 1785 - 495

60c = 1290

c= 21.5

********************************************************

Now place the value of c in Eq (2)

So , m =6.5

Mark my answer as brainlist answer

Step-by-step explanation:

3 0
3 years ago
Please Help!!! I am totally lost!<br><br> Solve for x and find mangleABC.
kupik [55]
When something bisects an angle, it cuts that angle in half. This means that ray BD cuts angle ABC in half. Therefore, angle ABD, which is formed by cutting the angle in half, is equal to angle CBD, which is also formed by cutting the angle in half. Because of this, you have to set the equation equal to each other.

9x-18=5x+2

Combine like terms. Add 18 to both sides.

9x=5x+20

Combine like terms. Subtract 5x from both sides.

4x=20

Divide 4 on both sides.

x=5 degrees
3 0
3 years ago
If graphed in the plane, would the line y=5x-2 pass through the point (4,15)
yulyashka [42]

Answer:

no

Step-by-step explanation:

Using substitution, subs in the points given

(15) = 5(4) - 2

15 = 20 - 2

Because the 2 sides are NOT equal the line would not pass through the point

5 0
3 years ago
Factor 3x^2 minus 12x minus 36 Completely
stepan [7]
3(x-6)(x+2)
hope this helps
5 0
3 years ago
17.5 how to make this into a fraction
BARSIC [14]
Take the .5 of the 17.5 and convert it to a fractin.
we know .5 is equal to 50% or 1/2 

now we have a mixed number  17 \frac{1}{2}

in order to convert it into an improper fraction you need to multiply the whole number by the denominator and then add the numerator all while keeping the denominator constant. 

W \frac{N}{D} =  \frac{(W*D)+N}{D}

so 17 \frac{1}{2}= \frac{(17*2)+1}{2}= \frac{35}{2}



5 0
3 years ago
Read 2 more answers
Other questions:
  • Ivan biked 1 2/3 hours on monday 2 1/3 hours on tuesday and 2 2/3 hours on wednesday how many hours ivan spent biking
    7·1 answer
  • Which ratio in this triangle represents cos θ?
    12·2 answers
  • Write a rational function that has a vertical asymptote of x=5 and a horizontal asymptote of y=0
    6·1 answer
  • ( X ) -3, 0, 3
    11·1 answer
  • Emily increased the price of carrot cakes at her bakery by 6%. The original price of a carrot cake is represented by x. Which ex
    5·2 answers
  • What is the vertex for y= 4 (x-2)^2 +3
    14·1 answer
  • What's the missing value2x+3y=12
    14·1 answer
  • (d). Use an appropriate technique to find the derivative of the following functions:
    6·1 answer
  • Please help!!!!!!!
    11·1 answer
  • Solve for s.<br><br> 3(s+8)=36<br><br><br> s = 2<br><br> s = 4<br><br> s = 8<br><br> s = 12
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!