Question

Solve the equation.

x – 2/7 = 3









A.

x = –3 2/7








B.

x = –2 5/4








C.

x = 2 5/7








D.

x = 3 2/7

Answer 1

first, we get the placeholders on one side
x-2/7=3
add 2/7 to both sides
x=3+2/7
3=21/7
x=21/7+2/7
x=23/7
x=3 and 2/7
so the answer is D

Answer 2

First we need to group like terms:

`x- (2)/(7) =3`

We do this by adding
`(2)/(7)` to both sides:

`x=3 (2)/(7)`