Question

[pham nguyen phuong uyen]

Tìm x

X*12,6-x*5,6=42

Answer 1

[Emma]

X x 12,6 - X x 5,6 = 42

X x ( 12,6 - 5,6 ) = 42

X x 7 = 42

X       = 42 : 7

X       = 6

Vậy X = 6

~ HOK TỐT ~