![joycewingate919](/avatars/8675.jpg)
joycewingate919
24.12.2020 •
Mathematics
Solve the system by elimination. {2x+y=13x−y=−4 A. (3, 7) B. (2, 6) C. (4, 8) D. no solution
Solved
Show answers
More tips
- D Dating, Love, Relationships How Long Can Love Last?...
- A Auto and Moto Mastering One-Movement Parking: All You Need to Know...
- C Computers and Internet How to Properly Order Clothing from International Online Stores...
- H Health and Medicine Headache: A Comprehensive Guide to Treatment...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- A Auto and Moto Discovering the Leader: What is the Most Expensive Car in the World?...
- F Food and Cooking How to Quickly Put your Child to Sleep?...
- C Computers and Internet How to Create a Website for Free and Easy?...
- F Family and Home Parquet or laminate, which is better?...
- H Health and Medicine Coughing: Causes, Types, and Treatment Methods...
Answers on questions: Mathematics
- M Mathematics Cat este 5 la puterea 24...
- M Mathematics Is 17 1/2 to the right or left of 17 2/3 on the number line? Explain your answer....
- M Mathematics Hey beautiful, are you having a bad day? lemme give u a kith....
- M Mathematics 1/2 + 3/8 What the answer super easy points...
- M Mathematics (1/125x^3)-1/3 Simplify the expression...
- M Mathematics In a Test PLease help Fast!! X 1 4 7 13 16 19 y 4 7 10 16 19 22 Based on the relationship between the independent variable x and dependent variable y above, Leia...
- M Mathematics What different elements are present in the following equation? Choose all correct answers. CH4 + 2O2 → CO2 + 2H2O Group of answer choices Oxygen Hydrogen Carbon...
- M Mathematics Pythagoras liked to organize positive even integers into groups. One way he did this was to divide them into three groups: evenly-even, oddly-even, and oddly-odd....
- M Mathematics I will give brainliest but please be sure of your answer. Do NOT answer to it if you don t know. Just type in the chat if you don t know. Or don t answer at all...
- M Mathematics 5x+10=5(x+2). Is this identify, Expression, Equation, Formula or Inequality...
Ответ:
A
Step-by-step explanation:
Given the 2 equations
2x + y = 13 → (1)
x - y = - 4 → (2)
Add the 2 equations term by term to eliminate the y- term, that is
3x = 9 ( divide both sides by 3 )
x = 3
Substitute x = 3 into either of the 2 equations and solve for y
Substituting into (1)
2(3) + y = 13
6 + y = 13 ( subtract 6 from both sides )
y = 7
solution is (3, 7 ) → A
Ответ:
Step-by-step explanation:
2x+y=13
x - y =-4 lets add both equations
3x=13-4
x=9/3 , x=3
3-y=-4, y=7
choice A
Ответ:
Step-by-step explanation:
It represent a square pyramid