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Jay simplified the expression 3×(3+12÷3)-4.For his first step,he added 3+12 to get 15. What was Jay's error?Find the correct answer

Respuesta :

The correct answer is 17. Jay forgot to do the multiplication first before he did addition inside the parenthenses. This is why he should have looked carefully.

lecarp16
3x(3+12÷3)-4, your first step would be to distribute. 9x+36x÷9x-4, you will then have to collect like terms and get 13x-4 as the answer. Jay got it wrong because instead of distributing like he is suppose to he divided what was on the inside of the parenthesis and then added it together