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a)
(x+2)/4 + (3-x)/3 = x/-3 /* (-12)
-3(x+2) - 4(3-x) = 4x
-3x-6-12+4x-4x=0
-3x = 18 /:(-3)
x =- 6
b) 5x - 15 = 0
5x = 15 /:5
x = 3
c) 3x - 4 = 11
3x = 15 /:3
x = 5
d) 1/3x=4 /* 3
x = 12
e) 0,3y/2 + 0,5 = 2,3 /*2
0,3y + 1 = 4,6
0,3y = 3,6 /:0,3
y = 12
f) x : 4 5/6 = 6/29
x : 29/6 = 6/29 /* 29/6
x = 6/29 * 29/6
x = 1
g) x/2 + 1 = 2 - x/3 /* 6
3x + 6 = 12 - 2x
5x = 6 /:5
x =6/5
x =1 1/5
h) 15 = 4 + x/3 /*3
45 = 12 + x
45-12 = x
x = 33
a) 3(x+2) / 12 + 4(3-x) /12 = -4x /12
3x+6+12-4x /12 =-4x /12
18-x /12 =-4x /12 /*12
18-x= -4x
-x+4x= -18
3x = -18 /:3
x=-6
b) 5x-15=0
5x=15 /:5
x=3
c) 3x-4=11
3x=11+4
3x=15 /:3
x=5
d) 1/3x=4 /*3
x=12
e) 0,3y /2 +0,5=2,3 /*2
0,3y +1=4,6
0,3y= 4,6-1= 3,6 /:0,3
y=12
f) x / 4 5/6=6/29
x / 29/6 = 6/29
x* 6/29= 6/29 /* 29/6
x=1
g) x/2 + 1 = 2 - x/3 /*6
3x+6= 12-2x
3x+2x= 12-6
5x=6 /:5
x= 6/5= 1 i 1/5
h) 15=4 + x/3 /*3
45=12+x
45-12=x
x=33
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a)
(x+2)/4 + (3-x)/3 = x/-3 /* (-12)
-3(x+2) - 4(3-x) = 4x
-3x-6-12+4x-4x=0
-3x = 18 /:(-3)
x =- 6
b) 5x - 15 = 0
5x = 15 /:5
x = 3
c) 3x - 4 = 11
3x = 15 /:3
x = 5
d) 1/3x=4 /* 3
x = 12
e) 0,3y/2 + 0,5 = 2,3 /*2
0,3y + 1 = 4,6
0,3y = 3,6 /:0,3
y = 12
f) x : 4 5/6 = 6/29
x : 29/6 = 6/29 /* 29/6
x = 6/29 * 29/6
x = 1
g) x/2 + 1 = 2 - x/3 /* 6
3x + 6 = 12 - 2x
5x = 6 /:5
x =6/5
x =1 1/5
h) 15 = 4 + x/3 /*3
45 = 12 + x
45-12 = x
x = 33
a) 3(x+2) / 12 + 4(3-x) /12 = -4x /12
3x+6+12-4x /12 =-4x /12
18-x /12 =-4x /12 /*12
18-x= -4x
-x+4x= -18
3x = -18 /:3
x=-6
b) 5x-15=0
5x=15 /:5
x=3
c) 3x-4=11
3x=11+4
3x=15 /:3
x=5
d) 1/3x=4 /*3
x=12
e) 0,3y /2 +0,5=2,3 /*2
0,3y +1=4,6
0,3y= 4,6-1= 3,6 /:0,3
y=12
f) x / 4 5/6=6/29
x / 29/6 = 6/29
x* 6/29= 6/29 /* 29/6
x=1
g) x/2 + 1 = 2 - x/3 /*6
3x+6= 12-2x
3x+2x= 12-6
5x=6 /:5
x= 6/5= 1 i 1/5
h) 15=4 + x/3 /*3
45=12+x
45-12=x
x=33