Question

Find the value of m, from the following
equations 3m+n=-1 , m-n=-3​

Answer 1

Step-by-step explanation:

Hope it will help you

thanks

Answer 2

Given question:

$3m + n = - 1 - - - - (1)$

$m - n = - 3 - - - - (2)$

now take the value of m from equation (2) and put it in equation (1)

so we get,

$m = - 3 + n$

so equation (1) will be:

$3( - 3 + n) + n = - 1$

$- 9 + 3n + n = - 1 \\ 4n = - 1 + 9 \\ n = \frac{8}{4} \\ n = 2$

now put the value of n in equation (2)

then

m = -1