a) [ 178 - ( 13x - 8 ) ] . 53 = 5724
178 - ( 13x - 8 ) = 5724 : 53
178 - (13x - 8 ) = 108
13x - 8 = 178 - 108
13x - 8 = 70
13x = 70 + 8
13x = 78
x = 78 : 13
x = 6
b) 5252 : [ 276 - ( 4x - 6 ) ] = 26
276 - ( 4x - 6 ) = 5252 : 26
276 - ( 4x - 6 ) = 202
4x - 6 = 276 - 202
4x - 6 = 74
4x = 74 + 6
4x = 80
x = 80 : 4
x = 20
câu a bn tính 5724:53
sau đó bỏ ngoặc vuông r lấy 178- 5724:53
xong rồi bn tự tính nha
tíc mình nha
a ) [ 178 - ( 13x - 8 ) ] . 53 = 5724
178 - ( 13x - 8 ) = 5724 : 53
178 - ( 13x - 8 ) = 108
13x - 8 = 178 - 108
13x - 8 = 70
13x = 70 + 8
13x = 78
x = 78 : 13
x = 6
b ) 5252 : [ 276 : ( 4x - 6 ) ] = 26
276 : ( 4x - 6 ) = 5252 : 26
276 : ( 4x - 6 ) = 202
4x - 6 = 276 : 202
4x - 6 = 1,3663
4x = 1,3663 + 6
4x = 7,3663
x = 7,3663 : 4
x = 1,8415
a/ [ 178 - ( 13x - 8 ) ] . 53 = 5724
178 - (13x - 8) = 5724:53
178 - (13x - 8) = 108
13x - 8 = 178 - 108
13x - 8 = 70
13x = 70 + 8
13x = 78
x =78 : 13
x = 6
b/ 5252 : [ 276 - ( 4x - 6 )] = 26
276 - (4x - 6) = 5252 : 26
276 - (4x - 6) = 202
4x - 6 = 276 - 202
4x - 6 = 74
4x = 74+6
4x=80
x = 80:4
x = 20
cảm ơn mấy bạn nhiều nha ^^! !!!!!!!!!!!!!!!!
a) [ 178 - ( 13x - 8 )] . 53 =5724
178 - ( 13x - 8) = 5724 :53
178 - (13x - 8) = 108
13x - 8 = 178-108
13x-8 = 70
13x= 70 + 8
13x = 78
x = 78 : 13
x = 6
b) 5252 : [ 276 - (4x - 6 )] = 26
276 - ( 4x - 6 ) = 5252 : 26
276 - ( 4x - 6 ) = 202
4x - 6 = 276-202
4x - 6 = 74
4x = 74 + 6
4x = 80
x = 80 : 4
x = 2
K MK NHA, MK TRẢ LỜI ĐẦY ĐỦ NHẤT LUÔN NÈ
Tìm x :
a/ [ 178 - ( 13x - 8 ) ] . 53 = 5724
b/ 5252 : [ 276 - ( 4x - 6 )] = 26
a ) [ 178 - ( 13x - 8 ) ] . 53 = 5724
178 - ( 13x - 8 ) = 5724 : 53
178 - ( 13x - 8 ) = 108
13x - 8 = 178 - 108
13x - 8 = 70
13x = 70 + 8
13x = 78
x = 78 : 13
x = 6
nhé !
a ) [ 178 - ( 13x - 8 ) ] . 53 = 5724
178 - ( 13x - 8 ) = 5724 : 53
178 - ( 13x - 8 ) = 108
13x - 8 = 178 - 108
13x - 8 = 70
13x = 70 + 8
13x = 78
x = 6
a ) [ 178 - ( 13x - 8 ) ] . 53 = 5724
178 - ( 13x - 8 ) = 5724 : 53
178 - ( 13x - 8 ) = 108
13x - 8 = 178 - 108
13x - 8 = 70
13x = 70 + 8
13x = 78
x = 6
a ) [ 178 - ( 13x - 8 ) ] . 53 = 5724
178 - ( 13x - 8 ) = 5724 : 53
178 - ( 13x - 8 ) = 108
13x - 8 = 178 - 108
13x - 8 = 70
13x = 70 + 8
13x = 78
x = 6
cảm ơn các bạn nhìu nhaaaa ^O^ thanks