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
Kisachek [45]
3 years ago
12

Solve y=-x+2 and y=-2x-1 as a graph, substitution, or elimination?

Mathematics
1 answer:
kotegsom [21]3 years ago
8 0

Answer:

(- 3, 5 )

Step-by-step explanation:

Given the 2 equations

y = - x + 2 → (1)

y = - 2x - 1 → (2)

Using substitution method.

Substitute y = - x + 2 into (2)

- x + 2 = - 2x - 1 ( add 2x to both sides )

x + 2 = - 1 ( subtract 2 from both sides )

x = - 3

Substitute x = - 3 into (1)

y = - (- 3) + 2 = 3 + 2 = 5

Solution is (- 3, 5 )

You might be interested in
Which value, when placed in the box, would result in a system of equations with infinitely many solutions? y = -2x 4 6x 3y =
wariber [46]

The missing value is 12 in a system of equations with infinitely many solutions conditions.

It is given that in the system of equations there are two equations given:

\rm y =n -2x+4\\\rm and \\\rm 6x+3y= ?

It is required to find the missing value in the second equation.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables if we plot the graph of the linear equation we will get a straight line.

We have equations:

\rm y = -2x+4 ....(1)\\  \\\rm 6x+3y= ?  ....(2)

Let's suppose the missing value is 'Z'

We know that the two pairs of equations have infinitely many solutions if and if they have the same coefficients of variables and the same constant on both sides.

From equation (1)

\rm y = -2x+4 \\\\\rm 2x+y=4(multiply both the sides by 3)

\rm 6x+3y=12 ...(3)

By comparing the equation (2) and (3), we get

M = 12

Thus, the missing value is 12 in a system of equations with infinitely many solutions conditions.

Learn more about the linear equation.

brainly.com/question/11897796

8 0
2 years ago
Convert 4/7 to decimals using long divison​
Elena-2011 [213]
I think it’s 1.75 sorry if this is wrong
3 0
3 years ago
Please help me with questions 21 and 22
valentina_108 [34]
I’m not sure abt 21 but 22 is the second one and the 4th one. So 2,4.
3 0
3 years ago
Need help ASAP BRAINLIEST IF CORRECT
kiruha [24]

Answer:

X=6

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Convert 4875km to metres​
alekssr [168]

Answer:

123.825 meters

Step-by-step explanation:

Sorry if its wrong

4 0
3 years ago
Other questions:
  • What is y=x -4; (5,1)
    6·1 answer
  • Volume of a cone: V = 3 Bh
    10·1 answer
  • Which of the following is an example of simple harmonic motion?
    9·2 answers
  • Point V lies between points U and W on Line segment U W.
    14·2 answers
  • Jaylen is making pancakes. He has 1 liter of pancake mixture. If Jaylen is using
    7·1 answer
  • Help ASAP!!! Easy question i guess?
    8·2 answers
  • On Triangle ABC, Angle A measures 30 degrees, Angle B measures 90 degrees, and Angle C measures 60 degrees. List the sides of Tr
    12·1 answer
  • If a 90°degree angle is bisected, the two angles created by the bisector will equal?
    14·2 answers
  • -1/4+3/4 please help I feel dumb for not knowing but I’m trying
    6·1 answer
  • Simplify the exponential expression.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!