2. Aladdin has some lamps. When Aladdin buys three more lamps and adds to the double of the number of lamps he has, the total number of lamps goes up to 15.

(a) Form an equation for the above, considering x as the number of lamps that Aladdin has.

x=6

Step-by-step explanation:

Let the number of lamp Aladdin has=x

Aladdin buys three more lamps and adds to the double of the number of lamps he has.

Therefore:

2x+3=15

Subtract 3 from both sides

2x+3-3=15-3

2x=12

Divide both sides by 2

x=6

Aladdin has 6 lamps initially.

5050

hope this !

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.