2x + y - z= -8 2y+3z= -6
1
- 1x+y+z=-4

For the following matrix, which of the following matrix operations would result in 241 = 1?
A. Multiply row 2 by-1 and add it to row 1.
B. Multiply row 3 by -4 and add it to row 1.
C. Multiply row 1 by -1/2
D. Multiply row 1 by 1/2

37/3

step-by-step explanation:

step 1: simplify both sides of the equation.

7x+8(x+

1

4

)=3(6x−9)−8

7x+(8)(x)+(8)(

1

4

)=(3)(6x)+(3)(−9)+−8(distribute)

7x+8x+2=18x+−27+−8

(7x+8x)+(2)=(18x)+(−27+−8)(combine like terms)

15x+2=18x+−35

15x+2=18x−35

tep 2: subtract 18x from both sides.

15x+2−18x=18x−35−18x

−3x+2=−35

step 3: subtract 2 from both sides.

−3x+2−2=−35−2

−3x=−37

step 4: divide both sides by -3.

−3x

−3

=

−37

−3

x=

37

3

you need to give us more information since we can't answer

probably the last option

step-by-step explanation: