Question

m+n=7
m-n= 1

Find the value of nm- m+m*n​

Answer 1

Answer:

value of m is 4 and value of n is 3

4+3=7

4-3=1

Answer 2

m + n = 7

m = 7 - n ..... ( 1)

Now in

m - n = 1

7 - n - n = 1 ( by 1)

7 - 2n = 1

On Transposing

7 - 1 = 2n

6 = 2n

n =3

Put n = 3 in eq 1

m = 7 - n

m = 7 - 3 = 4

Consider nm -(m + m) n

= 3 * 4 - ( 4 + 4) 3

= 12 - (8) 3

= 12 - 24

= - 12

Hope it helps you ☺️