Find the value of x:
5/7x+1/7=3
Can anybody explain how to do this?
2007-10-04 12:22:26 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Sure.
5/7x + 1/7 = 3
First, multiply everything by 7 to get rid of your fractions.
5/7x(7) + 1/7(7) =3(7)
That gives:
5x + 1 = 21
Now, isolate the 5x:
5x = 21 -1
5x = 20
Now, divide by 5 to find x.
5x = 20
x = 20/5
So, x = 4.
Hope that helped!
Regards,
Mysstere
2007-10-04 12:27:26 · answer #1 · answered by mysstere 5 · 0⤊ 0⤋
5/7x+1/7=3
Multiply both sides by 7
5x + 1 = 21
5x = 20
x = 4
.
2007-10-04 19:27:30 · answer #2 · answered by Robert L 7 · 0⤊ 0⤋
it would be:
5/7x+1/7=3
so you would subtract 1/7 from both sides.
then it would be:
5/7x = 20/7
then x would = 4.
2007-10-04 19:29:44 · answer #3 · answered by Anonymous · 0⤊ 0⤋
u can work backward
3 subtract 1/7
that answer divided by 5/7
^^
2007-10-04 19:26:43 · answer #4 · answered by Reciee 2 · 0⤊ 0⤋
ovbiouslu he just answered that for you but im exellent at math and ill be your online tuter
2007-10-04 19:30:02 · answer #5 · answered by Michelle P 1 · 0⤊ 0⤋