Answer:
The unknown number is 34.
Step-by-step explanation:
x+5=39
x=39-5
x=34
Answer:
n=-6
Step-by-step explanation:
2(n+5)=-2
distribute
2(n+5)
2xn 2x5
2n+10
2n+10=-2
subtract 10 from both sides
10-10=0
-2-10=-12
2n=-12
divide each side by 2
2n/2=n
-12/2=-6
n=-6
Answer:
9
Step-by-step explanation:
45 Cookies... 5hrs
? cookies... 1 hr
45 ÷ 5 = 9
9 cookies per hour