Respuesta :

Answer:

x = 3.875 OR 4

Step-by-step explanation:

x + 3 5/8 = 7 1/4

In improper fractions:

x + 27/8 = 29/4

To combine x with it

(8x + 27)/8 = 29/4

Lets cross multiply

29 × 8 = 4(8x + 27)

232 = 32x + 108

Simplify;

232 - 108 = 32x

124 = 32x

x = 3.875

Rounded off 4