The median is 18 because there is nine digits and if you slit them into 2 the number 18 would be in the middle
X-y=7
so you have to rewrite the equation in the form of mx+b=y
so ... x-y=7
-x -x
-y=7-x then simplify
-y(-y)=-(7-x) multiply both sides by -1
y=-7+x
which is the same y= x-7
y=x+-7
Answer: v = 12
Step-by-step explanation: