Question

5m+2n=3 ; 3m-4n=7 solve the simultaneous equations​

Answer 1

Step-by-step explanation:

I have attached an image

hope it will help you

Answer 2

Answer:

m = 1

n = -1

Step-by-step explanation:

2 x (5m + 2n = 3) - [for easier subtraction]

3m - 4n = 7

10m + 4n = 6

3m - 4n = 7

[Add both equations]

[+4n and -4n get cancelled]

10m + 3m = 6 + 7

13m = 13

m = 13/13

m = 1

[Take one of the equations and substitute m, then solve it]

5m + 2n = 3

5(1) + 2n = 3

5 + 2n = 3

2n = 3 - 5

2n = -2

n = -2/2

n = -1

[Verify your answer by substituting the variables and solving the second equation]

3m - 4n = 7

3(1) - 4(-1) = 7

3 - (-4) = 7

3 + 4 = 7

7 = 7

Hope it helps!