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2010-02-02T19:36:34+01:00
A)10:x=8
x = 10/8
x = 1¼

b)24x+8=10
24x = 2
x = 2/24
x = 1/12

c)x:x-x=-6
1-x = -6
7 = x

d)-2/3x-1/2=3/6
-2/3x = 1/2 + 1/2
x = -3/2
2010-02-02T19:39:46+01:00
A)
10/x=8 |*x
10=8x |:8
x=10/8=5/4
b)
24x+8=10 |-8
24x=2 |:24
x=2/24=1/12
c)
x:x-x=-6
1-x=-6 |-1
-x=-7 |:(-1)
x=7
d)
-2/3x-1/2=3/6 |*6
-4x-3=3 |+3
-4x=6 |:(-4)
x= - 6/4 = -3/2