Question

ai giúp mik zới ạ

Answer 1

a: =>2x-1=49

=>2x=50

=>x=25

b: =>-2x+1=x-2

=>-3x=-3

=>x=1

c: =>x+1=49/9

=>x=40/9

d: =>1/2x-4=9

=>1/2x=13

=>x=26

e: =>x-1=9/4

=>x=13/4