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Translate and solve for the unknown number.Show your solution.

1)A number added to 17 is -23.

2)Twice a number is -44.

3)Thrice a number added to 5 is 20.

4)65 is the sum of a number and 40.

5)The sum of a number and 8 divided by 4 is 10.

Sagot :

1) 17 + n = -23
    n = -23 - 17
    n = - 40

2)  2n = - 44
     2n/2 = -44/2
     n = - 22

3)  3n + 5 = 20
     3n = 20 - 5
     3n = 15
     3n/3 = 15/3
     n = 5

4)  n + 40 = 65
     n = 65 - 40
     n = 25

5)  (n + 8) /4 = 10
     n + 8 = 10 (4)
     n + 8 = 40
     n = 40 - 8
     n = 32