Answer:
-2
Step-by-step explanation:
2(x+3)=2
Divide both sides by 2:
x+3=1
Subtract 3 from both sides:
x=-2
Hope this helps!
For this case we subtract $228 minus $12 to find the amount of money Tim spent on books. So, to know how much spending in each book we divide $228 by 6.

So, we have that each book costs $38.
Answer:
Each book costs $38
Answer:
7 x 10^-7
Step-by-step explanation:
3. (x + 1)/4 = 3 / 6
x + 1 = 3/6 x 4 = 2
x = 1
Scale factor = 6 / 4 = 1.5
Ratio of perimeters = 2 : 3
4. x / 21 = 20 / 15
x = 20 / 15 x 21 = 28
Scale factor = 20 / 15 = 4/3
Ratio of perimeters = 3 : 4
The answer is 6.75 or 27/4