693 решите уравнение (4/9*х-4/9):2/3+1/20 = 4/5

Question

693 решите уравнение (4/9*х-4/9):2/3+1/20 = 4/5

Answer 1

(4/9*х-4/9):2/3+1/20 = 4/5
2/3x÷2/3+1/20=4/5
x=4/5-1/20
x=3/4
X=0.75