a. \(x\cdot24\cdot3=936\)
\(x\cdot72=936\)
\(x=13\)
b. \(927\div x\cdot27=324\)
\(927\div x=12\)
\(x=77,25\)
X x 24 x 3 = 936
X x 24 = 936 : 3
X x 24 = 312
X = 312 : 24
x = 13
972 : X x 27 = 324
972 : X = 324 : 27
972 : X = 12
X = 972 : 12
X = 81
X x 24 x 3 = 936 972 : X x 27 = 324
X x 24 = 936 : 3 972 : X = 324 : 27
X x 24 = 312 972 : X = 12
X = 312 : 24 X = 972 : 12
X = 13 X = 81
X
X x 24 x 3 = 936
X x 72 = 936
X = 936 : 72
X = 13
972 : X x 27 = 324
972 : X = 324 : 27
972 : X = 12
X = 972 : 12
X = 81
x × 24 × 3 = 936 => x=13
972 ÷ x × 27 = 324 => x=81