Solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations.

Option (a) is correct.

The solution is (1, -1 , -4)

Step-by-step explanation:

Given:

A system of equation having 3 equations,

We have to solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations.  

 Consider  the given system

Write in matrix form as

⇒  AX = b

Writing in Augmented matrix form , [A | b]

Apply row operations to make A an identity  matrix.

Thus, We obtained an identity matrix

Thus, The solution is (1, -1 , -4)

answer: ouch. thats difficult

step-by-step explanation:

1/3

step-by-step explanation:

to find this, you can divide 12 by 4 which is 3 or you can multiply 4 until you reach 12 (4x3=12). both should give you 3, meaning theres three times less bananas than there are oranges.