Explanation:
-1 1/2 = -3/2
1/4 × (x - 2/5) = -3/2
let's multiply both sides by 4 to remove the first fraction on the left side :
x - 2/5 = -12/2
x = -12/2 + 2/5 = -6 + 2/5
-6 = -6 × 5/5 = -30/5
so,
x = -30/5 + 2/5 = -28/5 = -5 3/5 = -5.6
please pick any form you need for your result.