Tìm x : 5.(x+12)+22=92 3.(x+23)+6=96 95-5.(x+2)=45 155-10.(x+1)=55 15x-133=17 17x-20=14 14x+54=82 (x-105):21=15 2448:[119-(x-6)]=24 (4x+5):3-121:11=4 5x-x=84 Trả lời hết và đúng thì sẽ vote 5sao nhé !!!!!

5.(x+12)+22=92 => 5.(x+12) = 70 => x + 12 = 14 => x = 2

3.(x+23)+6=96 => 3.(x+23) = 90 => x+23 = 30 => x = 7

95-5.(x+2)=45 => 5.(x+2) = 50 => x+2 = 10 => x = 8

155-10.(x+1)=55 => 10.(x+1) = 100 => x+1=10 => x = 9

15x-133=17 => 15x = 150 => x = 10

17x-20=14 => 17x = 34 => x = 2

14x+54=82 => 14x = 28 =>  x = 2

(x-105):21=15 => x-105 = 315 => x = 420 

2448:[119-(x-6)]=24 => 119-(x-6) = 102 => x-6=17 => x = 23

(4x+5):3-121:11=4 => (4x+5):3 - 11 = 4 => (4x+5):3 = 15 => 4x+5 = 45 => 4x = 40 => x = 10 

5x-x=84 => 4x = 84 => x = 21

HỌC TỐT :D

XIN HAY NHẤT NHA