<span>Select one equation and solve it for one of its variables.
In the other equation, substitute for the variable just solved.
Solve the new equation.
<span>Substitute the value found into any equation involving both variables and solve for the other variable. </span></span>
0,-5,-10,-15. It is that simple. All you had to do is keep counting down.
Hope this helps :)
Answer:
4
Step-by-step explanation:
Y is between X and Z
The value of d=2 and the value of YZ = 16
Given :
Y is between X and Z.
XY = 11d, YZ = 9d – 2, XZ = 5d + 28
We need to find the value of d
we know that Y is between X and Z
So, 
Replace the given expression and solve for d

The value of d=2
Now we find out YZ using d=2

The value of YZ is 16
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