Question

5/2- 3x= 6/7 -4x
3x +4x= 6/7 +-5/2
7x= 6/7*2 + -5/2*7
7x=12/14 + 10/14
7x/7 = 22/4
x= 5 1/2 What did I do wrong?

Answer 1

is it \[\frac{5}{2}-3x = \frac{6}{7}-4x\]
If so, in your first step it should be\[-3x+4x = \frac{6}{7}-\frac{5}{2}\]

Answer 2

then you get \[x=\frac{2*6}{2*7} - \frac{7*5}{7*2} = \frac{12}{14} - \frac{35}{14}\]

Answer 3

someone gave me this as the right answer4x-3x = 6/7-5/2
x= ((6*2)-(5*7)/14 = (12-35)/14
x = -23/14
x= -1 9/14
The answer is -1 9/14 simplest form