Question

2m+n=10 and m+n=7 find the value of m and n​

Answer 1

Answer:

if m=2 then put the value of m in the given equation, you will get

2(2)+n=10

4+n=10

now take the 4 to the other side where 10 is and subract it from 10,hence you will get:

n=10–4

n=6

hence, answer is 6.

Step-by-step explanation:

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Answer 2

Answer:

Given,

m+n=7 ...(1)

m=7-n ...(2)

Now,

2m+n=10

putting value of 'm' in above equation from equation (2)

2(7-n)+n=10

14-2n+n=10

14-n=10

n=14-10

n=4

Now, put value of 'n' in equation (1)

m+4=7

m=7-4

m=3