Question

Solve the following equation by trial and error method: (8x + 4 =60)
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Answer 1

Answer:

7

Step-by-step explanation:

8x +4 = 60

8x=60 -- 4

8x=56

x=56/8

x=7

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Answer 2

8x + 4 = 60

putting x = 0

8(0) + 4 = 60

0 + 4 = 60. .No it is not.

putting x = 1

8(1) + 4 = 60

8 + 4 = 60

12 = 60. .No it is not.

putting x = 2

8(2) + 4 = 60

16 + 4 = 60

20 = 60. .No it is not.

putting x = 3

8(3) + 4 = 60

24 + 4 = 60

28 = 60. .No it is not.

putting x = 4

8(4) + 4 = 60

32 + 4 = 60

36 = 60. .No it is not.

putting x = 5

8(5) + 4 = 60

40 + 4 = 60

44 = 60. .No it is not.

putting x = 6

8(6) + 4 = 60

48 + 4 = 60

52 = 60. No it is not.

putting x = 7

8(7) + 4 = 60

56 + 4 = 60

60 = 60. yes it is.

Therefore, x = 7

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