Sign In
Ask Question
Davidson
Mathematics
25 June, 14:35
X - 3y+z = 6
2x - бу - 2 = - 2
-x+y + 2 = 7
+1
Answers (
2
)
Cecelia Roy
25 June, 14:49
0
x = - 7 1/2
y = - 5/2
z = 11
Comment
Complaint
Link
Arabella Parrish
25 June, 15:02
0
x = - 7 1/2
y = - 5/2
z = 11
Step-by-step explanation:
x - 3y+z = 6 (1)
2x - бу - 2 = - 2 (2) 2x - 6y = - 2 + 2 = 0 (2x - 6y) / 2 = 0 x - 3y = 0 (4)
-x+y + 2 = 7 (3) - x + y = 7 - 2 x - y = - 5 (5)
Subtract (5) from (4), we have:
(x - 3y) - (x - y) = 0 - (-5)
x - 3y - x + y = 5
-2y = 5
y = - 5/2
Replace y with (4), we have x = 3 * (-5/2) = - 15/2 (or - 7 1/2)
Replace x with - 15/2 and y with - 5/2 in (1), we have z = 6 - (-15/2 - (-5/2)) = 6 + (15/2 - 5/2) = 6 + 5 = 11
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“X - 3y+z = 6 2x - бу - 2 = - 2 -x+y + 2 = 7 ...”
in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
What can be factored from 12g²-27h²
Answers (2)
michael bought 1500 seeds for his three gardens. the ratio of the number of seeds planted in garden a to the number of seeds planted in garden b to the number of seeds planted in garden c is 3:5:7.
Answers (1)
A brick has a mass of 2,000 grams. What is the mass of the brick in kilograms?
Answers (2)
You are ordering a pizza and soda for the big game. A deep dish pizza costs $10.25, and a two-liter of soda is $2.00. For each touchdown that the Eagles score on Sunday, Vinny's Pizza lowers the cost by $1.50.
Answers (1)
Miguel claims that the product of any fraction and 5/8 will always be less than 5/8
Answers (1)
New Questions in Mathematics
Gavin's anemometer measures the wind speed at 44.14 kilometers per hour. 4 times the wind speed 5 hours ago. What was the wind speed 5 hours ago?
Answers (1)
Find the next three terms in the numbers sequence 3,10,19,26,_,_,_.
Answers (1)
Simplify the expression cosxcscxtanx
Answers (1)
Simplify (2^3) ^-2. 1) - (1/64) 2) 1/64 3) 2 4) 64
Answers (1)
And is currently h years old. Bill is currently 2h years old and Charles is currently eight years old. Find an expression for each person's age after h years. Then find an expression for the sum of their ages after h years.
Answers (1)
Home
»
Mathematics
» X - 3y+z = 6 2x - бу - 2 = - 2 -x+y + 2 = 7
Sign In
Sign Up
Forgot Password?