DaniPooh18
contestada

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.

Respuesta :

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 = [tex] \frac{80}{5} [/tex]

2. Simplify [tex] \frac{80}{5} [/tex] 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

[tex]x = \frac{17}{4} [/tex]

Were done! Decimal Form Would Be 4.25