2 years ago

10x - 4 = 2 ( ? ) is it a) 5x - 4 b) 5x - 2 c) 10x - 4 d ) 10x - 8

1 answer:

3 0

We have that

10x - 4 = 2 ( ? )
I proceed to replace the missing value with the given expression

case a-------------> 5x - 4
then
10x - 4 = 2 (5x-4 )--------> 10x - 4 = 10x-8--------> is not solution

case b-------------> 5x - 2
then
10x - 4 = 2 (5x-2 )--------> 10x - 4 = 10x-4--------> is solution

case c-------------> 10x - 4
then
10x - 4 = 2 (10x - 4 )--------> 10x - 4 = 20x-8--------> is not solution

case d-------------> 10x - 8
then
10x - 4 = 2 (10x - 8 )--------> 10x - 4 = 20x-16--------> is not solution

the answer is the option b) 5x - 2

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