WorksheetsDatrys Hafaliadau
Total questions: 11
Worksheet time: 33mins
Name
Class
Date
1.
Cyfrifwch werth x:
x + 12 = 20
a)
x = 32
b)
x = -32
c)
x = 8
d)
x = -8
2.
Cyfrifwch werth b:
6b = 30
a)
x = 36
b)
x = 24
c)
x = 180
d)
x = 5
3.
Cyfrifwch werth x:
a)
x = 20
b)
x = 7
c)
x = 10
d)
x = 3
4.
Cyfrifwch werth x:
-5x = 25
a)
x = 20
b)
x = -20
c)
x = -5
d)
x = 5
5.
Cyfrifwch werth x:
x - 8 = -5
a)
13
b)
-13
c)
3
d)
-3
6.
Pa hafaliad sydd gan werth o x = 5 fel datrysiad?
a)
x + 15 = 10
b)
2x = 5
c)
2x = 10
7.
Cyfrifwch werth z:
144=12z
a)
z=20
b)
z=11
c)
z=12
8.
Cyfrifwch werth k:
3k + 5 = 23
a)
k = 4
b)
k = 5
c)
k = 6
d)
k = 7
9.
Cyfrifwch werth x:
3(x-4) = -3
a)
3
b)
-3
c)
5
d)
-5
10.
Cyfrifwch werth x:
3x - 5 = -26
a)
x=-21
b)
x=21
c)
x=-7
d)
x=61
11.
Cyfrifwch werth x:
-4x + 1 = 21
a)
x=120
b)
x=5
c)
x=30
d)
x=-5
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