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
Hoochie [10]
2 years ago
7

2y + x + 7 = 0 how do i solve with substitution?

Mathematics
2 answers:
Jlenok [28]2 years ago
6 0

Answer:

x+2y=-7

Step-by-step explanation:

2y + x =-7

x+2y=-7

Vlada [557]2 years ago
3 0
When solving for x, set y to 0. When solving for y, set x to zero. You can just isolate the variables from there.
You might be interested in
Find the ordered pairs for the x- and y-intercepts of the equation 3x − 2y = 18 and select the appropriate option below.
olasank [31]
<h2>Greetings!</h2>

Answer:

B)

Step-by-step explanation:

Y intercept:

Simply substitute all the x values with 0:

When x = 0:

3(0) - 2y = 18

Move the - 2y over to the other side making it a +2y:

0 = 18 + 2y

Move the +18 over to the other side making it a -18:

-18 = 2y

Divide both sides by 2:

\frac{-18}{2} = \frac{2y}{2}

-9 = y

So y intercept is:

<h3> (0 , -9)</h3>

X - intercept:

Simply substitute all the Y's with 0:

3x - 3(0) = 18

3x = 18

Divide both sides by 3:

\frac{3x}{3}  = \frac{18}{3}

x = 6

So the X intercept is:

<h3>(6 , 0)</h3>

This means that your guess of B is correct.


<h2>Hope this helps! </h2>
8 0
3 years ago
Read 2 more answers
oy is training for a triathlon. She runs a distance of 2x miles, cycles a distance of (x2 + 7) miles, and swims a distance of (x
Evgesh-ka [11]
Add
2x+x²+7+x-2
x²+3x+5 is the distance
7 0
3 years ago
At the last minute, the technology company decides to expand the warehouse and asks the general contractor to double the dimensi
Lesechka [4]
<span>The expansion of the warehouse will not affect the dimensions of the surrounding fence.</span>
3 0
3 years ago
If gas prices are now $3.75 and they were up 10% from 6 months ago, how much were gas prices 6 months ago?
Hatshy [7]

Given

gas prices are now $3.75 and it up 10% from 6 months ago.

Find out how much were gas prices 6 months ago.

To proof

gas prices now = $3.75

let the gas price 6 month ago = x

gas price now is rise up 10% from 6 months ago

First write 10% in simpler form

= \frac{10}{100}

= 0.1

Now the equation becomes

0.1x + x = 3.75

1.1x = 3.75

x =\frac{3.75}{1.1}

x = 3.41 (approx)

Thus gas prices 6 months ago be $ 3.41 (approx )

Hence proved

7 0
3 years ago
SOMEONEE HELPP MEEEEE
Nitella [24]

Answer:

Uh

Step-by-step explanation:

With what ??? no picture

6 0
2 years ago
Read 2 more answers
Other questions:
  • BRAINLIESTT ASAP! PLEASE HELP ME FAST :)<br> thanks!
    7·2 answers
  • Whats the answer can u please solve it.
    13·2 answers
  • Questions 6 to 10 are related. based on a random sample of n=15 observations, we have obtained a sample mean of x(bar)=1050. the
    9·1 answer
  • Please help please do
    13·1 answer
  • it Is recommended that you don't spend over 20% of your annual salary on housing. if I make $55,000 a year what should I budget
    15·1 answer
  • A=lw for l=6, w=12 A=?<br><br><br>d=rt for r=25, t=11 D=?
    12·2 answers
  • Please Help me<br> What is the answer
    8·1 answer
  • Select the correct answer from each drop-down menu.
    10·1 answer
  • Plzz help fast i will do 20 points
    13·2 answers
  • If x+y = -10 and x-y = 2 what is the value of x
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!