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Svetach [21]
4 years ago
14

Which equation, when solved, gives 8 for the value of X?

Mathematics
1 answer:
guajiro [1.7K]4 years ago
5 0

Answer:

Option C: (5/4)x - 2 = (3/2)x - 4

Step-by-step explanation:

A) (5/2)x + (7/2) = (3/4)x + 14

Multiply through by 4 to get;

10x + 14 = 3x + 56

10x - 3x = 56 - 14

7x = 42

x = 42/7

x = 6

B) (5/4)x - 9 = (3/2)x - 12

Multiply through by 4 to get;

5x - 36 = 6x - 48

6x - 5x = 48 - 36

x = 12

C) (5/4)x - 2 = (3/2)x - 4

Multiply through by 4 to get;

5x - 8 = 6x - 16

6x - 5x = 16 - 8

x = 8

D) (5/2)x - 7 = (3/4)x + 14

Multiply through by 4 to get;

10x - 28 = 3x + 56

10x - 3x = 56 + 28

7x = 84

x = 84/7

x = 12

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✯                                                                                               ✯

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