solve the following?

0 ⤊

solve the following?

((x)/(5))-4=((x)/(4))-8

2007-07-13 17:05:40 · 3 answers · asked by how you doin 1 in Science & Mathematics ➔ Mathematics

3 answers

x = 80

((x)/(5)) - 4 = ((x)/(4)) - 8
((x)/(5)) - ((x)/(4)) = - 4 '''(sub ((x)/(4)) and add 4 both sides)
4x - 5x = -80 '''(mult by 20 both sides)
-x = - 80 '''(combine like terms)
x = 80 '''( divide by -1)

2007-07-13 17:14:16 · answer #1 · answered by original_pet 4 · 0⤊ 0⤋

The first rule is always to get rid of those pesky fractions.
So try mutliplying by 20.
((x)/(5))-4=((x)/(4))-8
so
4x - 80 = 5x - 160
so
80=x
so
x=80
.

2007-07-14 00:09:12 · answer #2 · answered by tsr21 6 · 0⤊ 0⤋

Reading this as :-
(x / 5) - 4 = (x / 4) - 8
X by 20
4x - 80 = 5x - 160
80 = x

2007-07-14 05:38:11 · answer #3 · answered by Como 7 · 0⤊ 0⤋