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
dalvyx [7]
3 years ago
15

Solve the system x+3=22 2x-y=2

Mathematics
1 answer:
steposvetlana [31]3 years ago
3 0

Hello from MrBillDoesMath!

Answer:

x = 19, y = 36

Discussion:

x + 3 = 22     (*)

2x - y = 2      (**)


Subtract 3 from both sides of (*)

x + 3 -3 = 22 = 3 = 19  =>

x = 19


Substitute x= 19 in (**)

2(19) - y = 2 =>

38 - y = 2 =>           (add y to both sides)

38 -y + y = 2 + y =>

38 = 2 + y  =>         (subtract 2 from both sides)

38 -2 = 2 -2 + y =>

36 = y


Regards,  

MrB

P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


You might be interested in
Factorise the following equation: <img src="https://tex.z-dn.net/?f=6x%5E4y%5E3-10x%5E3y%5E4" id="TexFormula1" title="6x^4y^3-10
arsen [322]

Answer:

all work is shown and pictured

3 0
3 years ago
When it is summer in the United States, Earth is closest to the Sun.
Bingel [31]

Answer:

False

Step-by-step explanation:

I looked it up and I also remember it from school. The earth is closer to the sun in the winter. When i looked it up, heres what came up (from the library of congress): Many people believe that the temperature changes because the Earth is closer to the sun in summer and farther from the sun in winter. In fact, the Earth is farthest from the sun in July and is closest to the sun in January!

I'm pretty certain this is right, let me know.

7 0
3 years ago
Factor 4n 4 + n 3. n(4n3 + 1) n3(4n + 1) n3(4n)
andreev551 [17]

4n^4 + n^3

= n^3(4n + 1)

Hope it helps

6 0
3 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST TO WHOEVER GETS IT RIGHT.
zhenek [66]

Answer:

(5/6)

Step-by-step explanation:

Bc (2/3)=0.666666666667....

(2/15)*(4/5) doesn't make 0.666666666667

(4/5)*(5/6)= 0.666666666667

8 0
3 years ago
If f'(x) is (x-4)(4-2x) , what is f(x)?
butalik [34]
We can apply some rules backwards

first
f'(x)=
(x-4)(-2x+4)
-2x^2+12x-16

we know that
f'(rx^n)=rnx^{n-1}
so therefor maybe
-2x^2=rnx^{n-1}
2=n-1
n=3
rn=-2
3r=-2
r=-2/3

one is
\frac{-2}{3}x^3
second part

12x
12x=rnx^{n-1}
x^1, 1=n-1
n=2
rn=12
2r=12
r=6
6x^2 is the second bit

last part
-16
-16x^0=rnx^{n-1}
0=n-1
n=1

rn=-16
1r=-16
r=-16

-16x^1

so therfor f(x)=\frac{-2}{3}x^3+6x^2-16x
3 0
3 years ago
Other questions:
  • What are the center and radius of the circle with equation (x + 8)^2 + (y + 3)^2 = 121?
    12·1 answer
  • Which expression is not equivalent to the other expressions?
    9·1 answer
  • I will rate you brainliest
    7·1 answer
  • How to convert 4/80 into a percentage
    11·2 answers
  • Consider the curve x+xy+2y^2=6. the slope of the line tangent to the curve at the point (2,1) is?
    11·2 answers
  • If someone answers you'll make my day :)
    6·2 answers
  • A sports fan conducted a test to investigate whether male high school athletes are
    6·1 answer
  • Given g (x) = -x + 3, find g(1)
    12·1 answer
  • Pythorgorean Theorem ​
    12·1 answer
  • Solve the system of linear equations by elimination.<br> 2x – y=0<br> 3x – 2y = -3
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!