Answer:
1. Solving
we get x=3
2. Solving
we get x=-1
Step-by-step explanation:
We need to solve the equations:
1. 
Expanding the brackets

Taking LCM on left side we get 12

Add 7/12 on both sides

Adding x/12 on both sides and simplifying

Multiply both sides by 12/3

So, solving
we get x=3
2. 
Taking LCM and solving:

Cross multiplying

So, solving
we get x=-1
Answer:
4/10 = 2/5 = 40%
Step-by-step explanation:
Q,R,S,T = 4
Q R S T U V W X Y Z =10
Answer:71
Step-by-step explanation:
range is the difference between the highest number and the smallest number in a group of data
Highest number=85
Smallest number=14
Range=highest number-smallest number
Range=85-14
Range=71