Solve the system of equations.
3x – 2 = –18 + 5y
8y – 6 = 4x + 9y
y – 10 = 3x + 2z
a. (–1, –4, –8)
b. (–2, 11, 7)
c. (–2, 0, –11)
d. (–2, 2, –1)

option D

Step-by-step explanation:

3x – 2 = –18 + 5y      Equation 1

8y – 6 = 4x + 9y        Equation 2

y – 10 = 3x + 2z         Equation 3

Using Equation 1 we have:

3X=-18+5Y+2

3X=-16+5Y

  Equation 4

Using Equation 3 we have:

Y-10-3X=2Z

So  Equation 5

Using equation 2 and substituting equation 4 we have:

Using Equation 4 we have:

Using Equation 5 we have:

Finally:

X=-2

Y=2

Z=-1

a. -0.3 > -0.33

answer:

125 yards

explanation:

75+50=125. that is my answer