Question

True or False.
The expressions 8x + 3y and 7x + 2y can not be added.
If x is a natural number, then x + 1 is its predecessor.
Sum of a - b + c and -a + b - c is zero.​

Answer 1

Answer:

1. false

2. true

3. true

Answer 2

Answer:

a) 8x+3y+7x+2y

15x+5y

so it is false

b) True

c) True

a-b+c-a+b-c=0

hope it will help you