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
satela [25.4K]
2 years ago
12

Use the linear combination method to solve this system of equations. What is the value of x?

Mathematics
2 answers:
Semmy [17]2 years ago
7 0
X=1 because when u put it in then u will find out.y=-1
zepelin [54]2 years ago
4 0

Answer:

x=1

Step-by-step explanation:

We are going to use the matching method, it consists in clear the same incognits in both equations and macth those results. Steps below:

<u>First equation: </u>

-2.4x-3.6y=1.2

-3.6y=1.2+2.4x

y=(1.2+2.4x)/(-3.6)    

<u>Second equation:</u>

2.4x+1.2y=1.2

1.2y=1.2-2.4x

y=(1.2-2.4x)/(1.2)

Now we have to match both equations and clear the incognit <em>x</em>

(1.2+2.4x)/(-3.6) = (1.2-2.4x)/(1.2)

(1.2+2.4x) = (1.2-2.4x) *(-3.6)/(1.2)

1.2+2.4x = (1.2-2.4x) *(-3)

1.2+2.4x = -3.6+7.2x

2.4x-7.2x = -3.6-1.2

-4.8x = -4.8

x = (-4.8)/(-4.8)

<em>x = 1</em>

You might be interested in
The graph of F(x) can be flipped over a certain line to produce the graph of its inverse. What is the equation of that line?
OLEGan [10]
y=x
...................
3 0
2 years ago
Read 2 more answers
Need help finding slope, x-intercept, and y-intercept
butalik [34]

Step-by-step explanation:

count the slope, 5 up in 2.5 horizontal steps, slope = 5/2.5 or 2

x intercept is on the graph, 2.5

y intercept is also on the graph, -5

8 0
2 years ago
Read 2 more answers
HELP ASAP!!
mr Goodwill [35]
C I believe hope this is correct :)
3 0
3 years ago
Read 2 more answers
The sum of two numbers is x If one of the numbers is 12, what is the other?
neonofarm [45]
X-12 will give the other number
6 0
3 years ago
Read 2 more answers
6.7 more than 5 times a number is 20
IrinaK [193]
Subtract 6.7 from 20. This is 13.3. Divide 13.3/5 is 2.66. That is the answer
6 0
2 years ago
Read 2 more answers
Other questions:
  • What is the final cost of an item that is priced at $22.35 with a sales tax rate of 6%?
    10·1 answer
  • Solve the equation -x/3=8 using the two step equation formula
    12·1 answer
  • I need help ASAP<br><br> Please and thanks
    7·2 answers
  • Which shapes can you use to model the log and the board
    15·1 answer
  • 3. What is the last step to complete a perpendicular bisector construction? *
    8·1 answer
  • Jennifer earned $249.60 in 6 1/2 years on a $640 investment. What was the simple interest rate?
    6·2 answers
  • 1,2,3 or 4? help please and no I can't just guess till I get it right please help me
    7·1 answer
  • There are not asymptotes for the parent function<br> f (x) =1/x <br> True<br> False
    9·1 answer
  • zaheeda scored 9 goals in netball matches .At this rate , about how msny goals will she score in ten games​
    15·2 answers
  • How to subtract negative number from 1
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!