Question

5m-3n=19;m-6n=-7 simultaneous equation
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Answer 1

Answer:

m=5 and n= 2

Step-by-step explanation:

5m-3n =19

m-6n = -7

Mutiply 2 with 5 we get

5m-3n =19

5m-30n = -35

we get :

27n =54

n =2

and m = 5

Answer 2

Multiply the given given equations with the respective numbers so, that the coefficients of any one variable becomes equal to other.......

5m - 3n = 19 ------- x1

m - 6n = -7 -------- x5

5m - 3n = 19---------- equation 1

5m - 30n = -35--------equation 2

Now, solve them

5m -  3n   =   19

5m - 30n = -35

(-)   (+)         (+)

---------------------

0  + 27n = 54

27n = 54

n = 54/27

n = 2

put the value of 'n' in any equation to find 'm'

5m - 3n = 19

5m - 3(2) = 19

5m - 6 = 19

5m = 19 + 6

5m = 25

m = 25/5

m = 5