Question

giúp mình với ạ:(

Answer 1

Bài 2: 

a: =>5x-3x=26+12

=>2x=38

hay x=19

b: =>-7x=-28-17=-45

hay x=45/7

c: =>4x-8-15=3x+3+9

=>4x-23=3x+12

=>x=25

d: =>29-4x-6=-14-9x+3=-9x-11

=>-4x+23=-9x-11

=>5x=-34

hay x=-34/5

Answer 2

Bài 1

\(a,\\ =a+b+c+d-a-b-c\\ =d\\ b,\\ =3a+4b-5c-3a+2b+5c+17\\ =6b+17\\ c,\\ =2a-4b+6c-3a-9b-6c-2022\\ =-a-13b-2022\)

Answer 3

A=d

B=2b-10c+17

C=-a-13b-2022

Bài 2 

a)\(\text{5x-12=3x+26=>x=19}\)

b)\(\text{17-4x=3x-28}=>x=\dfrac{45}{7}\)

c)\(\text{4(x-2)-15=3(x+1)+9=>x=33}\)

d)\(\text{29-2(2x+3)=-14-3(3x-1)}=>x=\dfrac{34}{5}\)