Respuesta :

Answer:

x = 400

Step-by-step explanation:

5x + 100 = 2100

5x = 2000 (subtarct 100 from both sides)

x = 400 (Divide 5 from both sides)

x = 400

Answer:

x=400

5x+100=2100

5x=2100-100

5x=2000

x=400