Question

5m - 3n = 19 ; m - 6n = -7 .

give me a full answer
and step by step ​

Answer 1

Answer:

Let 5m - 3n = 19 be equation 1.

and m - 6n = -7 be equation 2.

we will solve the question by using substitution method

from equation 1

5m = 19 + 3n

m = 19 + 3n / 5 ---- (a)

put the value of m in equation 2

(19+3n/5) - 6n = -7

19+3n-30n/5 = -7

19-27n = -35

-27n = -35 - 19

-27n = -54

n = 54/27

n = 2

put value of n in (a)

m = 19+3(2)/5

m = 19 + 6/5

m = 25/5

m = 5

HOPE IT HELPS YOU