Solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations. 3x-4y-5z=-27 5x+2y-2z=11 5x-4y+4z=-7 a.(1,5,51) b.(10,5,51) c.(10,51,23) d.(1,5,2)

D. (1, 5, 2)

Step-by-step explanation:

It is convenient to let a graphing calculator do this. See the attachment.

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5