Mathematics, 19.07.2019 03:30, nayashuntel

Astudent 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

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:00, Hiadamcom

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Answers: 3

continue

Mathematics, 21.06.2019 23:00, winnie45

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.

Answers: 1

continue

Mathematics, 22.06.2019 00:00, GERIANNCAYER

Aclothing designer is selecting models to walk the runway for her fashion show. the clothes she designed require each model’s height to be no more than y inches from 5 feet 10 inches, or 70 inches. which graph could be used to determine the possible variance levels that would result in an acceptable height, x?

Answers: 2

continue

Mathematics, 22.06.2019 01:40, savthespice

Manuela solved the equation below. what is the solution to manuela’s equation?

Answers: 2

continue

Do you know the correct answer?

Astudent is solving the system of equations below. in which line is a mistake first made?
2x...