Question

a)3x+9=2x-11

b)2x-3 phần 5 -2=2-x phần 4

c)2x+3.3+x^2=2.2x+3

 

Answer 1

a: =>3x-2x=-11-9

=>x=-20

c: \(\Leftrightarrow\left(2x+3\right)\left(x^2+3\right)=2\left(2x+3\right)\)

=>2x+3=0

hay x=-3/2