a)
2(x+3)-x=0
2x+6-x=0
x=-6
b)
12+3(2-x)=0
12+6-3x=0
3x=18
x=6
c)
2(x-0,5)+3=x-5
2x-1+3=x-5
x=-7
d)
0,5(x+2)-1=2x-1,5
0,5x+1-1=2x-1,5
1,5x=1,5
x=1
e)
1,5(x+2)=-0,5x+1
1,5x+3=-0,5x+1
2x=-2
x=-1
a) 2x+6-x=0
x+6=0
b) 12+6-3x=0
18-3x=0
18=3x /3
6=x
c) 2x-1+3=x-5
2x+2=x-5
2x-x= -5-2
d) 0,5x+1-1=2x-1,5
0,5x=2x-1,5
0,5x-2x=-1,5
-1,5x=-1,5 /-1,5
e) 1,5x+3=-0,5x+1
1,5x+0,5x=1-3
2x=2 /2
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a)
2(x+3)-x=0
2x+6-x=0
x=-6
b)
12+3(2-x)=0
12+6-3x=0
3x=18
x=6
c)
2(x-0,5)+3=x-5
2x-1+3=x-5
x=-7
d)
0,5(x+2)-1=2x-1,5
0,5x+1-1=2x-1,5
1,5x=1,5
x=1
e)
1,5(x+2)=-0,5x+1
1,5x+3=-0,5x+1
2x=-2
x=-1
a) 2x+6-x=0
x+6=0
x=-6
b) 12+6-3x=0
18-3x=0
18=3x /3
6=x
c) 2x-1+3=x-5
2x+2=x-5
2x-x= -5-2
x=-7
d) 0,5x+1-1=2x-1,5
0,5x=2x-1,5
0,5x-2x=-1,5
-1,5x=-1,5 /-1,5
x=1
e) 1,5x+3=-0,5x+1
1,5x+0,5x=1-3
2x=2 /2
x=1