Question

quanto é 2x=50 , 8×- +2=42, 3x-8=37, x+10=35, 2x +1=23, 7x=42, 10x-45=x, 8x-13=130

Answer 1

Resposta:

x = 25

x = 5

x = 15

x = 25

x = 11

x = 6

x = 5

x = 17,875