When three times a number is decreased by 5, the result is 1

Question

I need help solving this question

 

Answer 1

3x-5=1

 

3x-5   =1

    +5 =+5.....add 

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3x=6

 

 3x/3=6/3...divide both sides by 3

 

x=2

 

to check, substitute 2 for x in equation 

3(2)-5=1

6-5=1

1=1....correct