I'm not sure if that is supposed to be 7 or -7
If it's -7:
1<2n-5<-7
+5 +5 +5 Add 5 to all parts of the inequality get 2n by itself
6<2n<-2
/2 /2 /2 Divide all parts by 2 to isolate the variable
3
4/2 for the first one
14/2 for the second one
Simplified it would be
2/1 for the first
7/1 for the second
Answer:
second option
Step-by-step explanation:
x - y= 28
x+y = 56
Answer:
Step-by-step explanation:
Answer: x = 9/11
Step-by-step explanation:
First, distribute 9 to x and -1
9x - 9 = 2
Then add 9 to both sides
9x = 11
Then divide both sides by 9
x = 9/11
Hope it helps :)