90 : x - 48 : x = 3
(90 - 48) : x = 3
42 : x = 3
x = 42 : 3
x = 14
Vậy...
\(90\div x-48\div x=3\)
\(\Rightarrow\left(90-48\right)\div x=3\)
\(\Rightarrow42\div x=3\)
\(\Rightarrow x=42\div3\)
\(\Rightarrow14\)
\(HT\)
90:x-48:x=3
90:x -48:x=3
90:x-48:x=3
90 :x -48:x=3
90:x-48:x=3
Tìm x:
a) 42 : x + 36 : x = 6 b) 90 : x – 48 : x = 3
tim x
42:x+36:x=66
90:x-48:x=3
tim
42:x+36:x=6
90:x-48:x=3
a, 90 : x - 48 : x =3
b, 8 * x + 17 * x = 15675
c, 532 : x = 28
