A student is solving the system of equations below. In which line is a mistake first made?
2x + y - 2z = 23
3x + 2y + z = 11
x - y + z = - 2
line 1 z = 11 + 3x + 2y
line 2 2x + y - 2 (11 + 3x + 2y) = 23
line 3 - 4x - 3y = 45
line 4 x - y + (11 + 3x + 2y) = - 2
line 5 4x + y = - 13
line 6 - 2y = 32
line 7 y = 16, x = ¾, z = - 11/4
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A student is solving the system of equations below. In which line is a mistake first made? 2x + y - 2z = 23 3x + 2y + z = 11 x - y + z = - ...” 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
Annie is choosing an outfit for the day. She has a choice of 3 pairs of pants, 2 shirts, and 3 pairs of shoes. How many different outfit choices does she have? 27 18 9 6
Answers (2)
It took Jill two hours to drive 100 miles. what was her average speed?
Answers (2)
How many cubic blocks of side length 1/6 inch would take to fill a rectangular prism with a length, width, and height of 1/2 cm, 1/6 cm, and 1/2 cm respectively?
Answers (1)
Which of the following is the coefficient in the algebraic expression 2x + yº?
Answers (2)
Which situations describe similar but not congruent triangles?
Answers (1)
New Questions in Mathematics
The radius of the planet Uranus is approximately 4 times the size of the radius of Earth. What does this tell you about the volumes of these planets?
Answers (2)
Using the calculator, what is the approximate radius of a circle whose circumference is 62.8 inches? A. 10 inches B. 5 inches C. 2.5 inches D. 20 inches
Answers (1)
Susan has 4 gallons of juice. how many cups of juice does she have?
Answers (1)
How many day would it take for a machine costing 9,000 pay for itself if it produced 3.00 every 2 hours
Answers (1)
You have two jobs. One job pays $7 per hour and the other pays $8.25 per hour. You worked 22 hours total last week and earned $171.50. How many hours did you work at each job?
Answers (1)