Sarah is saving to buy a new phone. she needs $150, and she has already saved $63. write an equation to model this situation. let x represent the amount of money sarah needs.

x + 63 = 150

Step-by-step explanation:

Amount of money needed is $150 If she has already saved $63. The amount saved is not yet up to the amount needed to buy the new phone.

Let x represent the amount of money Sarah needs. It means that adding the amount required to be saved to the amount saved would equal the amount needed to buy the phone.

Therefore,

x + 63 = 150