Which of the following system of equations is not equal to the system of equations shown
7x - 3y = 4
2x - 4y = 1

a. 28x - 12y = 16 and -6x + 12y = -3
b. 14x - 6y = 4 and -14x + 28y = 1
c. -28x + 12y = -16 and 28x - 56y = 14

B

Step-by-step explanation:

7x - 3y = 4

2x - 4y = 1

A. if u take 7x - 3y = 4and multiply it by 4, u get 28x - 12y = 16

   if u take 2x - 4y = 1...and multiply it by -3, u get -6x + 12y = -3

  These are equivalent equations

B. if u take 7x - 3y = 4...multiply it by 2, u get 14x - 6y = 8

  not equivalent

C. if u take 7x - 3y = 4, multiply it by -4, u get -28x + 12y = -16

  if u take 2x - 4y = 1, multiply it by 14, u get 28x - 56y = 14

   equivalent equations

d

step-by-step explanation:

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column