[Josy]

It all comes down to cals in vs cals out, create a deficit each week and you will lose weight, it's science, to lose 1lb per week you have to be in roughly 3500 calorie deficit for that week.

So to answer your question, if you exercise and burn more cals you will be able to eat more if that's what you choose to do, or you could just have a higher deficit for that day and lose quicker.

Do a TDEE, then deduct about 500 from your maintenance cals to lose 1lb per week, 1000 for 2lb per week etc