Toán 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 21/07/2021 By Ariana 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 😀 XIN HAY NHẤT NHA Trả lời
1, 5.(x+12)+22=92 ⇔5x+60+22=92 ⇔5x+82=92 ⇔5x=92-82 ⇔5x=10 ⇔x=2 2, 3.(x+23)+6=96 ⇔3x+69+6=96 ⇔3x+75=96 ⇔3x=96-75 ⇔3x=21 ⇔x=7 3, 95-5.(x+2)=45 ⇔5(x+2)=50 ⇔x+2=10 ⇔x=8 4, 155-10.(x+1)=55 ⇔10(x+1)=100 ⇔x+1=10 ⇔x=9 5, 15x-133=17 ⇔15x=17+133 ⇔15x=150 ⇔x=10 6, 17x-20=14 ⇔17x=14+20 ⇔17x=34 ⇔x=2 7, 14x+54=82 ⇔14x =82-54 ⇔14x=28 ⇔x=2 8, (x-105):21=15 ⇔x-105=315 ⇔x=315+105 ⇔x=420 9, 2448:[119-(x-6)]=24 ⇔119-(x-6)=102 ⇔x-6=17 ⇔x=23 10, (4x+5):3-121:11=4 ⇔(4x+5):3-11=4 ⇔(4x+5):3=15 ⇔4x+5=45 ⇔4x=40 ⇔x=10 11, 5x-x=84 ⇔4x=84 ⇔x=21 Trả lời