Respuesta :

5n = 40

Divide both sides by 5

N = 8

D + 15 = 30

Subtract 15 from both sides

D = 15

Answer:

First one 5n-40 what does n so n=  8

The last one I see is d+15=30 so the d=15

Step-by-step explanation:

1. 5x8-40 i think

2.15+15=30 this is right am 91.1% right about this one