Question 381682
{{{(-2v+5x)/(7v) + (9v-4x)/(7v) =-2/7+(5x)/(7v)+9/7-(4x)/(7v)}}}
{{{(-2v+5x)/(7v )+ (9v-4x)/(7v) =(-2/7+9/7)+(5x)/(7v)-(4x)/(7v)}}}
{{{(-2v+5x)/(7v) + (9v-4x)/(7v) =(1)+(x)/(7v)}}}
{{{highlight((-2v+5x)/7v + (9v-4x)/7v =1+(x)/(7v))}}}