Respuestas

  • Haiku
  • Moderador Profesor
2014-02-10T02:11:58+01:00

a) 4x = 28; x = 28/4 = 7

b) 2x+7 = 47; x= (47-7)/2 = 40/2 = 20

c) ax = b; x = b/a

d) 4x-9 = 23; x = (23+9)/4 = 32/4 = 8

e) x+a = b; x= b-a

f) x√2-3 = 5; x= (5+3)/√2 = 8/√2