Sagot :
5x+6=2x-3
5x-2x=-3-6
3x=-9
x=-9/3 x=-3
5-2x=3x+4
-2x-3x=4-5
-5x=-1
x=1/5
5x-2x=-3-6
3x=-9
x=-9/3 x=-3
5-2x=3x+4
-2x-3x=4-5
-5x=-1
x=1/5
5x+6=2x-3
5x+6-3=2x
5x+3=2x
5x+3-2x=0
3x+3=0
3x/3=-3/3
x=-1
5-2x=3x+4
5-2x-4=3x
1-2x=3x
1=3x
1=3x+2x
1=5x
5x/5=1/5
x=1/5
5x+6-3=2x
5x+3=2x
5x+3-2x=0
3x+3=0
3x/3=-3/3
x=-1
5-2x=3x+4
5-2x-4=3x
1-2x=3x
1=3x
1=3x+2x
1=5x
5x/5=1/5
x=1/5