The Government 45 is the first to graduate from school
Answer:
7x + 14
Step-by-step explanation:
the first thing to do is expand the parentheses/brackets.
3(5x + 2) -2(4x - 4) will be
3(5x) + 3(2) -2(4x) -2(-4)
= 15x + 6 - 8x + 8
collect like terms
15x - 8x + 6 + 8 = 7x + 14
the answer is 7x + 14
n(A-B) denotes elements which are in A but not in B
n(Au B) denotes elements in A and B
n(AnB) denotes elements that are common in A and B
Now I will add one more set
n(B-A) which denotes elements in B but not in A
So, n(AuB) = n(A-B) + n( B-A) +n(AnB)
70 = 18 +n(B-A) + 25
70 = 43 + n(B-A)
n(B-A) = 70-43
n(B-A) = 27
So, n(B) = n( B-A) + n( AnB)
= 27+25
= 52
Option C: 6 is the value of 
Explanation:
The given expression is 
We need to determine the value of
To find the value of , let us substitute 
in the given expression.
Thus, substituting in the expression, we have,
Adding the terms, we get,
Since, we know the absolute rule that 
and the simplified expression is of the form 
, let us apply the absolute rule in the simplified expression.
Thus, we have,
Thus, the value of is 6.
Hence, Option C is the correct answer.
