Answer:
The 1st, 2nd and last statement on the +3 side and the rest three statements on the -3 side
Let b be the initial amount of books. Steve sells half of his books, so the number of Steve's books become

Then, he buys 6 more, so the number increases by 6:

This number is now 14, so you have

Subtract 6 from both sides:

Multiply both sides by 2:

Answer:
(x+1)²= 49, the answer is B
Step-by-step explanation:
x² + 2x = 48
x² + 2x + (2/2)² - (2/2)²= 48 --[what we are trying to do is to complete a square by adding (2/2)² - (2/2)²]
(x+1)²= 49, the answer is B
Answer:
its d
Step-by-step explanation:
the options can be eliminated by using common sense.
Answer:
16 + 2x
Step-by-step explanation: