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DaniPooh18
Answered

Hi, I need help working this problem out please.

5(4x-1)=80

I got x=4 but the answer is suppose to be 17/4. Thanks in advance.

Verified Answer :

mpanderla95

5(4x-1) = 80

20x - 5 = 80

20x - 5 + 5 = 80 + 5

20x = 85

20x/20 = 85/20

X = 85/20

X = 17/4 if reduced to lowest terms by dividing both the top and bottom number by 5.

candystarlover4
  1. Divide both sides by 5

    4x - 1 =     \(\frac{80}{5}\)

    2. Simplify \(\frac{80}{5}\) to 16

    4x - 1 = 16

    3. Add 1 to both sides

    4x = 16+1

    4.     Simplify 16 + 1 to 17

    4x = 17

    5. Divide both sides by 4

    \(x = \frac{17}{4}\)

    Were done! Decimal Form Would Be 4.25

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