Sign In
Ask Question
Mathematics
Myles Shah
17 September, 19:46
5x + 7y = 2 and - 2x + 7y = 9
+2
Answers (
1
)
Leticia
17 September, 21:11
0
conclusion one solution (-1, 1)
Step-by-step explanation:
hello:
5x + 7y = 2 ... (*)
-2x + 7y = 9 ... (**)
by (*) and (**) calculate 7y
7y = 2-5x
7y = 9+2x
9+2x = 2-5x
2x+5x = 2-9
7x=-7 so : x = - 1
put this value in expression : 7y = 9+2x
7y = 9+2 (-1)
7y = 7
y = 1
conclusion one solution (-1, 1)
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question ✅
“5x + 7y = 2 and - 2x + 7y = 9 ...”
in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
What is the standard form of 210 million 64050
Answers (1)
What is the 9th term of the geometric sequence 4, - 20, 100, ...? -312,500 -12,500 62,500 1,562,500
Answers (1)
Find two consecutive intergers that have a sum of - 67
Answers (1)
What was the first mall
Answers (2)
5/8 of votes were for blue, 5/9 of the remaining votes were for green and remaining 48 votes were for red. How many votes were for blue?
Answers (1)
New Questions in Mathematics
What number is 120% of 60?
Answers (1)
There are 30 legs in my backyard but I'm counting dogs and kids. How many dogs and kids are in my backyard?
Answers (1)
Volume of cylinder with radius of 3m^2n and height of 7mn
Answers (1)
The tree nearest to the classroom is 30 feet tall. In another 10 years it will grow 5 more feet. If the variable h stands for the height of the tree 10 years from now, which of the following choices is the most reasonable value for h? A. 10 feet B.
Answers (1)
Tyler baked 702 cookies. he sold them in boxes of 18. after selling all the boxes of cookies for the same amount each, he earned 136.50$. what was the cost of 1 box of cookies?
Answers (1)
Home
»
Mathematics
» 5x + 7y = 2 and - 2x + 7y = 9
Sign In
Sign Up
Forgot Password?