Question

please help me solve this equation.. posted in replies

Answer 1

\[\frac{ x }{ 3 } - \frac{ 2x }{ 5 } = 2\]

Answer 2

first we have to find common denominator

Answer 3

do you know how to ?

Answer 4

would it be 15?

Answer 5

yes .. so now you can rewrite the equation so that all the terms will have 15

Answer 6

for example x/3 -> 5x / 15

Answer 7

and the other one would be 2x/5 -> 6x/15 is that correct?

Answer 8

verygood

Answer 9

so the whole equation then become..

Answer 10

5x/15 - 6x/15... :S

Answer 11

no since you forgot about the right side of the equation (you have to multiply it by 15 since it has 1 in its denominator ) :
5x/15 -6x/15 = 30/15

Answer 12

and now you can forget about the denominator since its the same for all the terms
so now, can you solve it ?

Answer 13

-x=30? or would it be - 30?

Answer 14

-x = 30 -> x = -30

Answer 15

yeahh thats what i meant..thank you :)

Answer 16

yw