Write the missing reasons. Assume that each variable represents any real number. Prove: (a + b) + (-b) = a
Proof:
1. a + b is a real number
2. -b is a real number
3. (a + b) + (-b) = a + [b + (-b)]
4. (a + b) + (-b) = a + 0
5. (a + b) + (-b) = a

1.
2.
3.
4.
5.

f(x) = y

f(-3) = -5

step-by-step explanation:

x is greater than 5

step-by-step explanation:

2x+7 is greater than 17

    -7                           -7

2x is greater than 10

divide by 2 each side

x is greater than 5

translate k to n and reflect across the line containing jk.

step-by-step explanation:

where is the question is there is a formula or is there not one