Question

if x is solution of equation 4x=12,then the value of 3x-9=____
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Answer 1

Answer:

0

Step-by-step explanation:

4x = 12

x = 3

Let the value be ' a '

3x - 9 = a

3 × 3 - 9 = a

9 - 9 = a

a = 0

Answer 2

Step-by-step explanation:

4x=12

transposing 4 to R.H.S

x=12/4

x=3

Now, 3x-9

putting x=3

3(3)-9

9-9=0

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