Respuesta :
Note the equation given is:
4(x) = 2/5
Isolate the x. Note the equal sign. What you do to one side, you do to the other. Divide 4 from both sides
4x/4 = (2/5)/4
x = (2/5)/4
x = 2/20
x = 1/10
Check: Plug in 1/10 for x.
1/10 x 4 = 4/10
Simplify 4/10. (4/10)/(2/2) = 2/5 (True)
1/10 is your answer
hope this helps