Question

[Sunjinachi]

Tìm x biết:

a) 96-3(x+8)=42    b) 36:(x-5)=2²

c) 15.5.(x-35)-525=0    d) [3.(70-x)+5]:2=46

Mn giải giúp mik nhé !!

Answer 1

[ミ★ғox♥️ʀồɴԍ★彡乡]

a)96-3(x+8)=42

3(x+8)=96-42

3(x+8)=54

x+8=54:3

x+8=18

x=18-8

x=10

b)36:(x-5)=2^

36:(x-5)=4

(x-5)=36:4

x-5=9

x=9+5

x=14

Answer 2

[ミ★ғox♥️ʀồɴԍ★彡乡]

c)15.5(x-35)-525=0

75(x-35)=0+525

x-35=525:75

x-35=7

x=7+35

x=42

d)[3.(70-x)+5]:2=46

3.(70-x)+5=46x2

3.(70-x)+5=92

3.(70-x)=92-5

3.(70-x)=87

70-x=87:3

70-x=29

x=70-29

x=41

HT