what is the answer for these ordered triple of these equations: x+y+z=16 and x-z= 12 and y= -2

Question

Find the ordered triple of these equations.

                                                x+y+z=16

                                                  x-z=12

                                                   y=-2

Answer 1

x + y + z = 16 --- (1)
x - z = 12 --- (2)
y = -2 --- (3)

Substituting (3) into (1), we have:

x + (-2) + z = 16
x + z = 16 + 2
x + z = 18
z = 18 - x --- (4)

Substituting (4) into (2), we have:

x - (18 - x) = 12
x - 18 + x = 12
2x = 12 + 18
2x = 30
x = 30 / 2
x = 15

Substituting x = 15 into (4), we have:

z = 18 - 15
z = 3

Hence, we have x = 15, y = -2 and z = 3.

Answer 2

x-(18-x)=12

x-18+x=12

2x=12+18

2x=30

x=30/2

x=15

Answer 3

2a+9b-2a-b

Answer 4

70%(40%)+(30%)+30%[30%] =

Answer 5

8x+3y=-102

Answer 6

-2/9-3/4

Answer 7

solve ordered triples

x+y+z=7

x-y+2z=7

5x+y+z=11

Answer 8

what is the answer  3 3/10 - 1/2