13x+8y+ 3z=164
11x+4y+8z=144
6x+2y+9z=96

Step-by-step explanation:

The work is shown above, solving by using the Elimination Method.

I am joyous to assist you anytime.

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

mr. graef told us it is 13 pints

step-by-step explanation: