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
defon
3 years ago
11

Solve 3x+2y=4 4x+3y=7 algebraically

Mathematics
1 answer:
Leona [35]3 years ago
8 0
Step 1. Multiply first equation with -3 and the second one with 2. You'll get:
\left \{ {{-9x-6y=-12} \atop {8x+6y=14}} \right.

Step 2. Add both equations together. You'll get:
-x=2, which gives x = -2

Step 3. Replace x = -2 in the first equation and calculate y.
3(-2)+2y=4\\
y=\frac{4+6}{2}=5

The solution is: x=-2, y=5
You might be interested in
You are comparing prices from 2 office supply stores. Your office needs 5 cases of blue paper. Home & Office Headquarters li
melomori [17]


5x[$25.85-($25.85 x 0.10) ] + (5 x 2.50)=$128.83 compared to[ 5 x 27.36( $27.36 x 0.15)]+ 10.00= 126.28 is the least amount.

answer is ------> $126.28

8 0
3 years ago
Jackson eats 1/4 part of an apple in 1/2 a minute. How long will it take him to eat a full apple?
Nitella [24]
2 minutes. Hope this helps!
4 0
3 years ago
Sam invests £1800 in the bank for four
KIM [24]

Answer:

£2088

or

US$ 2,536.48 dollars (2021)

Step-by-step explanation:

4% of 1800 = 72

72 x 4 = 288

1800 + 288 = 2088

He has £2088 at the bank after 4 year

8 0
2 years ago
Which of the following best describes the vertical cross-section of the cylinder ?
Nina [5.8K]
The answer would be d
6 0
3 years ago
What is 89 add 78<br><br><br><br>first ti answer wins brainleast
Alex777 [14]

89+78=167

Hope this helps

-Moiselle

3 0
2 years ago
Read 2 more answers
Other questions:
  • Luis is saving money to purchase a new video game. He has a total of 30 coins consisting of nickels and dimes. The value of the
    6·2 answers
  • How to put y=3/8x+5 into stanfard form?
    15·1 answer
  • What percent of 82 is 12?
    14·1 answer
  • solve the systems of linear equations by graphing y=-5/2x-7 x+2y=4 what is the solution to the system of linear equations A. (-4
    9·2 answers
  • What is the greatest common factor of 30b^2, 80b^2, and 20b^2
    8·1 answer
  • Use an algebraic rule to describe a translation right 4 units and down 2 units.
    12·1 answer
  • Which expression is equivalent to -
    6·1 answer
  • I have two weeks to do 55% of my math and 10% of my english in Edgeenuity, is this do-able?
    10·1 answer
  • What is the lowest term of 75/60 as an improper fraction?
    12·2 answers
  • HEEEEEEEEEEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPPPPPPPP
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!