Question

Select all the expressions that are equivalent to 15n – 10.
8n – 23 – 3n + 11 + 10n + 2
20n – 5 + 15n – 5
3(5n – 2)
5(3n – 2)
35 – 3n + 10

Answer 1

8n-23-3n+11+10n+2 equivalent to 15n-10

= 5n-21+11+10n

=15n-10

20n – 5 + 15n – 5

=35n-10

3(5n – 2)

15n-6

5(3n – 2) equivalent to 15n-10

15n-10

35 – 3n + 10

-3n+45

Please learn  how to do it by yourself or don't be lazy :)

Answer 2

Answer:

SoluTion :-

1. (8n - 3n) + 10n - 23 - 11 - 2 = 5n + 10n - 10 ,= 15n - 10
2. 20n - 5 + 15n - 5 = 20n + 15n + 5 + 5 35n + 10
3. 15n - 3 × 2 = 15n - 6
4. 15n - 5 × 2 = 15n - 10
5. 35 - 3n + 10 = -3n + 35 + 10 ,= -3n + 45

Therefore,

The correct option are

1,3