Question

4m+2n=6;2m+4n=18 simultaneous equation

Answer 1

Step-by-step explanation:

4m+2n=6..........eq1

2m+4n=18..........eq2

2×4m+2n=6

4×2m+4n=18

8m+4n=12

8m+16n=72

- - -

-12n=-60

N=5

Substitute in 1 eq

4m+10=6

4m=-4

M=-1

N=5

M=-1

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Answer 2

4m+2n=6........(i)

2m+4n=18.......(ii)

Multiplying equation (ii) by 2 and then subtracting (ii) from (i) we get

-6n=-36

=>n=6

Putting n=6 in equation (i) we get

4m+2(6)=6

=>4m=-6

=>m= -3/2

Therefore, m= -3/2, n=6