Three times the difference of a number and seven is one less than twice the number. find the number

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Answer
The correct answer was given: diamondpositive68
3(x-7) = 2x -13x -21 = 2x -1x -21 = -1x = 20

Answer
The correct answer was given: Brain
The answer would be A. 1 1/5

48/40 = 1 8/40

1 8/40 Simplify to 1 1/5

Hope this helps! 

Answer
The correct answer was given: Brain
I believe it is 60-10=x because it says she purchased it with 60$ but recieved 10$ in change causing the amount we dont know to be a variable such as “x”

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