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
Svetradugi [14.3K]
4 years ago
10

​−8x+4y=24 ​−7x+7y=28 ​​ What is the solution?

Mathematics
1 answer:
SVETLANKA909090 [29]4 years ago
5 0
​−8x + 4y = 24 -- (1)
​−7x + 7y = 28 -- (2)

Eqn (1) & (2) are simplified as

y - 2x = 6 -- (3)
y - x = 4 -- (4)

By making y the subject of formula in (4), we have

y = x + 4 -- (5)

Substitute x + 4 for y in (3), then

x + 4 - 2x = 6
x - 2x = 6 - 4
- x = 2
x = - 2.

Substitute - 2 for x in (5), then

y = - 2 + 4
y = 2.

Therefore, (x, y) = (- 2, 2) ...Ans.
You might be interested in
I could use some help , i really cant do geometry :(
Gelneren [198K]

Answer:

I am not sure but for

CAE it is 65˚

CBD it is 65˚

Step-by-step explanation:

x+40=3x-10

Move the 3x to the other side by subtracting by 3x on both sides

x-3x+40=3x-3x-10

The equation now looks like this:

-2x+40=-10

Move 40 to the other side by subtracting 40 both sides:

-2x+40-40=-10-40

-2x=-50

Divide by -2 on both sides:

-2x/-2=-50/-2

x=25

Since we found out what x is we can replace x in both CAE and CBD:

For CBD: 25+40 is 65

For CAE: 3(25)-10 is 65

5 0
3 years ago
Read 2 more answers
What is 3 5/8 ÷14 please answer this
MissTica

Answer:

29/112

Step-by-step explanation:

3 5/8=29/8

(29/8)/14

(29/8)(1/14)=29/112

5 0
3 years ago
1<br> _x = 9 <br> 6<br> Solving equations
Zina [86]

Hello friend,. I hope it's helps you

enjoy your day

4 0
3 years ago
I need help. For khan academy. Explain if you can
olga55 [171]

Answer: Ok so the number on the y axis is 0,-3 cause it is above -4. And the next point is 1,-5. That is because the first thing you plot is the x axis and then the y axis so that it gives you your number

3 0
3 years ago
Which ratio is less than StartFraction 7 Over 15 EndFraction? StartFraction 9 Over 15 EndFraction Two-fifths Three-fifths StartF
Marianna [84]

Answer:

2/5

Step-by-step explanation:

First you want to find the least common denominator, which in this case would be 15. If you multiply 2/5 by 3, you get 6/15 which is less than 7/15

6 0
3 years ago
Read 2 more answers
Other questions:
  • Zoom in more, but can someone please help me with this?
    7·1 answer
  • 3(-6+8)=(3x-6)+(3x8)
    10·2 answers
  • Calista is making tea for a tea party each serving will be one cup how many pints of tea will she need for 16 guests?
    10·1 answer
  • Finn changes his mind and, from now on, decides to take the normal route to work everyday. On any given day, the time (in minute
    10·1 answer
  • 7.9y-2-3.2y-10=2.8+y
    11·1 answer
  • What kind of irony is used in this story?
    12·1 answer
  • Use the figure to the right to find the value of PT. T is the midpoint of PQ.
    13·2 answers
  • The table shows a linear function that the Hulk is using to study gamma rays.
    5·1 answer
  • Two trapezoids-shaped tabletops are congruent to each other trapezoid FGHI =trapezoid WXYZ must be congruent to GH
    8·1 answer
  • What is the length of the hypotenuse of the triangle?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!