Question

1.)5-3(x-9)=5(x 4)
2.)3(1-x)+2=5-3x
3.)2(x+1)-1=3-(1-2x)

Answer 1

1) Ce e intre x si 4 ?
2)3-3x+2=5-3x
3x+3x=-3-2+5
6x=-5+5
6x=0
x=0:6
x=0 
3) 2x+2-1=3+1-2x
2x+2x=-2+1+3+1
4x=-1+3+1
4x=2+1
x=3 supra 4
La 1 ) 5-3(x-9)=5(x+4)
5-3x-27=5x+20
-3x-5x=-5+27+20
-8x=22+20
-8x=42
x=42 supra 8 

Answer 2

1) 5-3(x-9)=5(x+4)
5-3x+27=5x+20
-3x-5x= -5-27+20
-8x= -32+20
-8x= -12
x= -12 supra 8
x= -3 supra 2
2) 3(1-x)+2=5-3x
3-x+2=5-3x
-x+3x=5-3-2
2x=0
x=0
3) 2(x+1)-1=3-(1-2x)
2x+1-1=3-1+2x
2x-2x=-1+1+3-1
x=2