Question

$(3 \frac{1}{2} x - \frac{1}{4} )*8=3$
помогите пожалуйста 

Answer 1

(3 1/2х-1/4)*8=3
3 1/2х-1/4=3/8
3 1/2х=3/8+1/4
7/2х=3/8+2/8
7/2х=5/8
х=5/8:7/2=5/8*2/7=5/4*1/7=5/28