Question

solve -> m + n = 7 , m - n = 11
Answer ASAP please​

Answer 1

Step-by-step explanation:

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

m-n=11------(2)

Subtract eqn (1) from (2)

m - n = 11

m + n = 7

= 2m = 18

m = 9

Substitute the value of m in eqn (1)

m + n = 7

9 + n = 7

n = 7 - 9

n = -2

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