I NEED HELP PLEASE THIS IS DUE IN 14 MINUTES. I’LL MARK YOUR ANSWER BRAINLIEST!!!
1: Louisa (L) is five years less than three times Brie’s age. Together, their age totals 43. How old is Louisa?

2: If the perimeter of the rectangular field is 84, where the length is x + 7 and the width is 3x - 1, determine the value of x.

3: If the perimeter of the rectangular field is 84, where the length is x + 7 and the width is 3x - 1. Determine the width.

4: If the perimeter of the rectangular field is 84, where the length is x + 7 and the width is 3x - 1. Determine the length.