b)
1½+ y = 2¾
y=2¾-1½
y=1,25
c)
t - 34 = -35
t=-35+34
t=-1
d)
3x = 2x + ¹/₇
3x-2x=¹/₇
x=¹/₇
e)
3 - x = -2x
-x+2x=-3
x=-3
f)
5y = 13
y=2,6
g)
¹/₇ x = ⅞
x=6,125
i)
7a + 7 = 35
7a=35-7
7a=28
a=4
j)
2-x = 5 - 2x
-x+2x=5-2
x=3
k)
69 - x = x + 96
-x-x=96-69
-2x=27
x=-13,5
l)
½ c + 5 = c + 8
½c-c=8-5
-0,5c=3
c=-6
b)1 i 1/2+y=2 i 3/4
y=2 i 3/4-1 i 1/2
y=2 i 3/4 - 3/2
y=11/4-6/4
y=5/4
y=1 i 1/4
c)t-34=-35
d)3x=2x+1/7
3x-2x=1/7
x=1/7
e)3-x=-2x
f)5y=13
y=13/5
y=2 i 3/5
g)1/7x=7/8
x=7/8:1/7
x=7/8*7/1
x=49/8
x=6 i 7/8
i)7a+7=35
j)2-x=5
-x=5-2
-x=3
k)69-x=x+96
x=-27/2
x=-14 i 1/2
l)1/2c+5=c+8
1/2c-c=8-5
-1/2c=3
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b)
1½+ y = 2¾
y=2¾-1½
y=1,25
c)
t - 34 = -35
t=-35+34
t=-1
d)
3x = 2x + ¹/₇
3x-2x=¹/₇
x=¹/₇
e)
3 - x = -2x
-x+2x=-3
x=-3
f)
5y = 13
y=2,6
g)
¹/₇ x = ⅞
x=6,125
i)
7a + 7 = 35
7a=35-7
7a=28
a=4
j)
2-x = 5 - 2x
-x+2x=5-2
x=3
k)
69 - x = x + 96
-x-x=96-69
-2x=27
x=-13,5
l)
½ c + 5 = c + 8
½c-c=8-5
-0,5c=3
c=-6
b)1 i 1/2+y=2 i 3/4
y=2 i 3/4-1 i 1/2
y=2 i 3/4 - 3/2
y=11/4-6/4
y=5/4
y=1 i 1/4
c)t-34=-35
t=-35+34
t=-1
d)3x=2x+1/7
3x-2x=1/7
x=1/7
e)3-x=-2x
-x+2x=-3
x=-3
f)5y=13
y=13/5
y=2 i 3/5
g)1/7x=7/8
x=7/8:1/7
x=7/8*7/1
x=49/8
x=6 i 7/8
i)7a+7=35
7a=35-7
7a=28
a=4
j)2-x=5
-x=5-2
-x=3
x=-3
k)69-x=x+96
-x-x=96-69
-2x=27
x=-27/2
x=-14 i 1/2
l)1/2c+5=c+8
1/2c-c=8-5
-1/2c=3
c=-6