Question

if 13m+n=33 7m+13n=17 then find m-n= question mark​

Answer 1

Answer:

Step-by-step explanation:

13m + n = 33 ------------(1)

7m + 13n = 17 -----------(2)

n = 33 - 13m ---------(3)

substituting equation (3) in (2)

7m + 13 (33-13m) = 17

7m + 429 - 169m = 17

-162m + 429 = 17

-162m = 17 - 429

-162m = - 412

m = 2.54

n = 33 - 13 x 2.54

n = - 0.02

m - n = 2.54 + 0.02 = 2.56

Answer 2

MARK IT AS BRAINLIEST..

(IT IS HAND- WRITTEN)

Answer:

13m + n = 33

n = 33 - 13m -----------(1)

7m + 13n = 17

(by putting the value of n)

7m + 13 (33- 13m) = 17

7m + 429 - 169m = 17

412 = 162m

m = 412/162

= 2.54

(1)

n = 33 - 13(2.54)

= 33 - 33.02

= - 0.02

A.T.Q

m - n = 2.54 - (-0.02)

= 2.54 + 0.02

= 2.56

hope it helps....