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
velikii [3]
3 years ago
7

Solve system of linear equation by substitution -x+y=2; 3x-5y=-4

Mathematics
1 answer:
GarryVolchara [31]3 years ago
7 0

Answer:

(-3,-1)

Step-by-step explanation:

-x+y=2

3x-5y=-4

in the top equation, we can get y by itself on one side of the equation:

-x+y=2

y=x+2

now, since we know that y=x+2, in the bottom equation we can substitute x+2 for y (substitution method) and solve:

3x-5y=-4

3x-5(x+2)=-4

3x-5x-10=-4

-2x-10=-4

-2x=6

x=-3

since we now know that x=-3, we can use it to find y by plugging in -3 for x in the top equation (you can do it in either equation, but doing it in the top equation is easier):

y=x+2

y=-3+2

y=-1

answer: (-3, -1)

You might be interested in
Help me fast plzzzzzzzzzzz
mario62 [17]

this question is incorrect because the decimal quantity functional persistent shouldnt be in a sequential farfictional order so the answer would be that satisfactory angle of theslop devided by pi and then multiplied by the persistent. hope this helped!

5 0
2 years ago
What is 4 4/5 + 1 1/3?
Dafna1 [17]

Answer:

\frac{92}{15}

Step-by-step explanation:

change to improper

\frac{24}{5}  +  \frac{4}{3}

this gives us

\frac{92}{15}

final answer

plz mark as brainliest

7 0
3 years ago
Read 2 more answers
What is the area of a traingle with base as 2cm and height as 7cm?
Alex17521 [72]

Answer:

7 cm²

Step-by-step explanation:

Area of a triangle = (Base * hight)  / 2

A = (2* 7) /2 = 14/ 2 = 7 cm²

3 0
2 years ago
Read 2 more answers
Graph the equation on the coordinate plane.y=2x-1
Yakvenalex [24]

This equation is written in slope intercept form

Remember that the slope intercept formula is:

y = mx + b

m is the slope

b is the y-intercept

In this case:

slope (m) is 2

y-intercept (b) is (0, - 1)

To plot this on a coordinate plane plot the y-intercept (0, -1).

To graph the rest of the line you can use what you know about the slope. Rise up two units and over to the right one unit from the y-intercept. You should arrive at the point (1, 1)

Then, again from the y-intercept, go down two units and to the left one unit. You should arrive at the point (-1, -3)

Now draw a straight line through the y-intercept and the other two points you just found

The image of the graph is shown below

Hope this helped!

~Just a girl in love with Shawn Mendes

4 0
3 years ago
Find the distance between (16,12) and (0,0)
Natasha_Volkova [10]

Answer:

3/4 using equation y2-y1/x2-x1

Step-by-step explanation:

Use the equation y2-y1/x2-x1

x1, y1  x2, y2

(16,12) (0,0)

0-12/0-16= -12/-16= 3/4

7 0
3 years ago
Other questions:
  • (Asap please!!! help!!)
    13·2 answers
  • 2+2×2<br> (169×12)+387<br> 255+40÷2+372
    8·2 answers
  • The  area of triangle formed by points of intersection of parabola y=a(x+5)(x−1) with the coordinate axes is 12. Find a if it is
    8·1 answer
  • 4y³-2(2y-3)+y written in standard form​
    9·1 answer
  • There are two factories in the town of lemming factory a has 4 times as many workers as factory B. factory a has 1160 workers .
    12·2 answers
  • Is 67 a multiple of 5
    13·2 answers
  • The quotient of a number and 3 is 8
    9·1 answer
  • On a spelling test of 100 words, most students spell between 68 and 75 words correctly. Which term best describes the only stude
    10·1 answer
  • Please solve This:
    14·2 answers
  • A regular pentagon and an equilateral triangle have the same perimeter. The perimeter of the pentagon is 5(x-2) inches. The peri
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!