Seven less than three times a number is ̶ 22. Find the number.
a) ̶ 3
b) ̶ 5
c) 3
d) 5
Seven more than three times a number is 31. Find
the number.
a) 5
b) 6
c) 7
d) 8
Solution:Three time a number = 3x
7 more than 3x = 3x + 7 = 31
3x + 7 = 31 3x = 31
What is the value of variable in the given equation? (3x + 1= 7)
a) 8
b) 6
c) 4
d) 2
Solution:3x + 1 = 7
3x = 7 ̶ 1 3x = 6 x=6/3 x=2
If 5 is added to a number(x) then the number becomes 12. Find the number.
a) 7
b) 17
c) 60
d) 65
Solution:let the number is = x
x + 5 = 12---- (1) x= 12 ̶ 5 x= 7
(now put x= 7 in equation (1) 12=12
If 9 is added to a number(x) then the number becomes 25. Find the number.
a) 34
b) 16
c) 225
d) 237
If 5 is subtracted from a number it becomes 13,
find the number.
a) 4
b) 8
c) 18
d) 24
Solution:let the number is = x
x ̶ 5 =13 x= 13 + 5 x= 18
|
