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
son4ous [18]
3 years ago
10

PLEASE HELP!!! Use addition to solve the linear system of equations. Include all of your work in your final answer. 2x + y = 5,

3x + 2y = 4
Mathematics
1 answer:
Arturiano [62]3 years ago
4 0
I: 2x+y=5
II:3x+2y=4

start by eliminating y

-2*I: -4x-2y=-10
II: 3x+2y=4

add both equations together

-2*I+II: -4x-2y+3x+2y=-10+4
-1x=-6
x=6

insert x=6 into I:
2*6+y=5
y=5-12
y=-7

so the solution is x=6, y=-7
You might be interested in
What is the value of y?<br> 40°<br> Y + 30°
stepan [7]

Answer:

y = 55

Step-by-step explanation:

The sum of the angles of a triangle are 180

40 + y+30 + y = 180

Combine like terms

70 +2y = 180

Subtract 70 from each side

2y = 180-70

2y = 110

Divide each side by 2

2y/2 = 110/2

y = 55

4 0
3 years ago
Read 2 more answers
Need help please help me if you know it
scoundrel [369]

Answer:

I believe it's C... Not sure though...

7 0
3 years ago
PLEASE ANSWER ASAP!!!
saveliy_v [14]

$20.95 - $17.50 = $3.45 simple math

3 0
3 years ago
Read 2 more answers
An appliance store bought a refrigerator at a cost of $795.60 and marked it up 60%. Later on, the store marked it down 50%. What
babymother [125]

Answer:

An appliance store-bought a refrigerator at a cost of $795.60 and marked it up 60%. Later on, the store marked it down 50%.

Step-by-step explanation:

hope it help!

5 0
2 years ago
Which relation is a function? A) x = y2 - 3 B) x = y - 4x2 C) y2 = 4x - 6 D) x2 = y2 - 10
Nitella [24]
The answer is letter b
5 0
4 years ago
Read 2 more answers
Other questions:
  • FRÉD AND ETHEL WACHED TV FOR SEVERAL HOURS ONE AFTERNOON. THEY BEGAN AT 1:30 P.M AND CONTINUED WACHING TV FOR 3 HOURS AND 45 MIN
    11·1 answer
  • You borrow $1900 to buy a refrigerator. The simple interest rate is 11%. You pay off the loan after 5 years. How much do you pay
    7·1 answer
  • Out of 32 students in a class, 5 said they ride their bikes to school. based on these results,how many of 800 students in the sc
    15·1 answer
  • I need help solving 11 3/4 minus 8 2/10
    11·1 answer
  • What's 18➗4.52? Plz help
    10·2 answers
  • Which term describes an angle that measures 100?
    6·1 answer
  • Nola is currently saving $200
    10·2 answers
  • Jana has a number cube numbered 1 to 6. She plans to roll the cube 78 times. Predict the number of times Jana will roll a 2.
    15·1 answer
  • Help please! I’ll give brainliest if correct!!
    14·1 answer
  • Write equations for the horizontal and vertical lines passing through the point (-2,-5).
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!