Question

what is the solution set for the open sentence with the given replacement set? 17-x=9, {5,6,7,8} WILL GIVE MEDAL
A. 5
B. 6
C. 7
D. 8

Answer 1

this is an equation. whatever you do to one side also do to the other to maintain the value.
what do you need to do to get the x term on one side and the numbers on the other?
do the same to the other side and simplify

Answer 2

so would my next step be taking 17 from the 9?

Answer 3

you can do that
the goal is to get x =