Use an inequality:
S = sum
7 + 7 < S < 8 + 9
14 < S < 17
so the sum is between 14 and 17
-5x-10=10 x= -4
Work:
-5x-10=10
+10 +10
______________
-5x=20
_______
-5 -5
x=-4
Answer:
what's the questions i don't see it, try reposting it or if you can edit this post then put in a picture.
Step-by-step explanation:
