Question

If 20-x=15, what is the value of 3x?

Answer 1

=20-x=15

=20-15=x

=5=x

putting the value of x

=3x

=3×5=15

the value of 3x= 15

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Answer 2

The right answer is 15

Step-by-step explanation:

20 - x = 15

=> - x = 15 - 20

=> -x = -5

=> x = 5

Now If we put value of 'x' then 3x will be ----

3x = 3×5

= 15