How do you solve 5/8+7/16q=3/4+1/4q?

1 Answer
Aug 7, 2015

color(blue)(q=2/3

Explanation:

5/8 +color(blue)(7/16q) =3/4+color(blue)(1/4q

5/8 -3/4 =color(blue)(1/4q -color(blue)(7/16q)

The L.C.M of the denominators, (4,8,16) is 16

So,

(5*2)/(8*2) -(3*4)/(4*4) =color(blue)((1*4)/(4*4)q -color(blue)(7/16q)

(10)/(16) -(12)/(16) =color(blue)((4)/(16)q -color(blue)(7/16q)

(-2)/(cancel16) =color(blue)(-3/cancel16q)

color(blue)(q=2/3