a) ( x + 574 ) x 87 = 57246
x + 574 = 57246 : 87
x + 574 = 658
x = 658 - 574
x = 84
b) 8 x X + 17 x X = 15675
( 8 + 17 ) x X = 15675
25 x X = 15675
X = 15675 : 25
X = 627
^ - ^
a, (x+574) x 87 = 57246
x+574 = 57246 : 87
x+574 = 658
x = 658 - 574
x = 84
b, 8*x + 17*x = 15675
(8+17)*x = 15675
25*x = 15675
x = 15675 : 25
x = 627
a, (x+574) x 87 =57246
x+574 = 57246 : 87
x+574 =658
x = 658 -574
x =84
b, 8 x X +17 x X =15675
X x (8+17) =15675
X x 25 =15675
X =15675: 25
X =627
t cho mình nha
( x + 574 ) x 87 = 57246
x + 574 = 57246 : 87
x + 574 = 658
x = 658 - 574
x = 84
8 x X + 17 x X = 15675
( 8 + 17 ) x X = 15675
25 x X = 15675
X = 15675 : 25
X = 627