Question

A 2(x+3)-3(2x+1=8(2x-1 )-9
B 3(2x+3)-2(3x+2)=-3(x+2)+2
C 5(x+2)-2(2x+3)=34-5x


dau COROANA va rog

Answer 1

A:   2x+6-6x-3=16x-8-9
       2x-6x-16x=-17+3-6
     -20x=-20
x=1
B:   6x+9-6x-4=-3x-6+2
5=3x-4
5+4=3x
9=3x
x=3

c:   5x+10-4x-6=34-5x
x+4=34-5x
x+5x=34-4
6x=30
x=5