Question

Rezolvati in Q ecuatia :
$(x - \frac{2}{5} ) \div 1.6 = - 4$

Answer 1

1,6=16/10=8/5
(x-2/5):8/5= -4
x-2/5= -4×8/5
x-2/5= -32/5
x= -32/5+2/5
x= -30/5
x= -6