28. 6x+42-20=6x
42-20=0
42-20 gives you 22
22=0
Statement is false
30. -2x-4=-2x-3-1
-2x-4=-2x-4
Statement is true because both sides are identical
32. 2x+8-5=2x+3
8-5=3
3=3
Statement is true for any value of x
34. 3x+(x+4)=18
3x+x+4=18
4x+4=18
4x=18-4
4x=14 (next divide both sides by 4)
x= 7 over 2
7/2
Answer:

Step-by-step explanation:
Given:

To find:
Simplified result of the radical
Solution:
If a value is in square root and it is not a perfect square then we can solve it by finding the answer by factoring down it to smaller factors which are perfect squares and finding the square root of the smaller values
Now
68 can be written as
68 = 2 * 2 * 17
The given is

It can be written as

=
Now
=
.
so given become

∵√2² = 2
∵a*√b=a√b
Answer:
1/8
Step-by-step explanation:
hbyhfbrhifgbuhbfe
Answer:
A(35)
B(35_20=15
Step-by-step explanation:
same as all above
Answer:
96
Step-by-step explanation:
25% is 1/4 of 100%
thus, if you multiply 24x4 you get 100%