Question

what is the value of m if m+2n=3, 3m-2n=17​

Answer 1

Answer:

in the first equation m+2n=3

or m= 3-2n ... equation (i)

in the second equation 3m-2n=17

or 3m =17+2n... equation (ii)

adding equation (i) and (ii)

3m = 17+2n

m = 3- 2n

by solving the equation we get m =5