Question

Find the value of x – 12:15 = 3:x​

Answer 1

Answer:

x - 12/15= 3/x

= 2x - 4/5= 3

= 2x - 4 = 15

= 2x = 19

= x= 9.5

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Answer 2

Answer:

x = 9

Explanation:

3x - 12 = 15

Add 12 to each side of the equation.

3x - 12 + 12 = 15 + 12

Combine like terms:

-12 + 12 = 0

15 + 12 = 27

Therefore:

3x = 27

Divide each side by 3

3x/3 = 27/3

x = 9

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