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
Xelga [282]
3 years ago
13

Solution of equation 3x-5y= 4 4x+3y=15

Mathematics
1 answer:
12345 [234]3 years ago
7 0
3x-5y=4------eq1
4x+3y=15-------------eq2

multiply 3 to first eq and 5 to second eq.

9x-15y=12
20x+15y=75

subtract both eqs

29x=87 x=3 so put x in eq 1

3(3)-5y=4
5y=5
y=1
You might be interested in
Name two numbers that are 14 units from 2 on the number line
Bess [88]

Answer:

12 and 12.5

Step-by-step explanation:

6 0
3 years ago
What is the sum of the addition equation 0.6 + 0.2 = ________? Use the decimal grid to help you solve. (2 points)
hammer [34]
0.8. Because just add
8 0
3 years ago
Read 2 more answers
Explain, in complete sentences, which method you would use to solve the following system of equations and why you chose that met
svp [43]
I would use elimination. I would multiply 4x+3y=2 by 3 so the it becomes 12x+9y=6, and I would multiply the bottom equation by 4 so that it becomes 12x+8y=4. Because I am using elimination I have to get rid of one variable, I chose to get rid of X hence that the coefficient of X in each equation is now 12. i simply subtract both equations and get y by itself. y=2. I plug in Y to find x in either of the original equations, where I get x=-1. To check my work substitute the values of x and y in the other equation. 4(-1)+3(2)=2 ------->  2=2
4 0
3 years ago
What value makes the equation 11-3x=-7 true?
o-na [289]
The answer is x=6. 11-3x6=-7
3 0
3 years ago
Read 2 more answers
Simple math! (i'll mark you)
navik [9.2K]

Answer: 20% of 248.00 is the same as 10% + 10% of 248 and the answer is 49.6

6 0
2 years ago
Read 2 more answers
Other questions:
  • I NEED HELP PLZ!!!! It’s important!
    12·2 answers
  • Marla did 65 sit ups each day for one week used to the distributive propertyto show an expression you can use to find the total
    10·1 answer
  • What is the property the statement illustrates7•m=m•7?
    7·2 answers
  • What is the factored form of 4x^2+23x-72
    10·1 answer
  • You receive 15% of the profit from a car wash how much money do you receive from a profit of 300
    6·2 answers
  • What is the first step when solving the following inequality x+2/-5<4? Group of answer choices A. Add 5 to both sides and DO
    10·1 answer
  • What is a placebo and why is it important in an experiment to test the effectiveness of a drug
    7·1 answer
  • Dax is buying hot chocolate for 5 people in his office (including himself). He pays for the 5 drinks and leaves a $2.00 tip.
    11·1 answer
  • What is the area of the figure below?
    13·1 answer
  • −13 − (−27) <br> pls help-
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!