The solution to the system of equations LaTeX: \begin{cases} 2x+3y=18 \\
-9y+z=-23 \\
5x-4z=50
\end{cases}{ 2 x + 3 y = 18 − 9 y + z = − 23 5 x − 4 z = 50 is LaTeX: (A, B, C)( A , B , C ). Find the missing variables.

LaTeX: A=A =

LaTeX: B=B =

LaTeX: C=C =

LaTeX: A=A =

LaTeX: B=B =

LaTeX: C=C =

find out the value of b

step-by-step explanation:

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

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: