35 x X + X = 72
( 35 + 1 ) x X = 72
36 x X = 72
X = 72 : 36
X = 2
\35 x X + X = 72
( 35 + 1 ) x X = 72
36 x X = 72
X = 72 : 36
X = 2
chú bn hok tốt @_@
35 x X + X = 72
35 x X + X x1 = 72
X . ( 35 + 1 ) = 72
X . 36 = 72
X = 72 : 36
X = 2
Các bạn k mình nha
35 *X+ X = 72
35 * X + X * 1
X * [35 + 1 ] = 72
X * 36 = 72
X = 72 : 36
X = 2
35 * x + x = 72
=> 35 * x + x * 1 = 72
=> x * ( 35 + 1 ) = 72
=> x * 36 = 72
=> x = 72 : 36
=> x = 2