Question

What is the value of D for the simultaneous equation 4m+ 6n=54 and 3m + 2n =28
60
-60
-10
10​

Answer 1

Answer:

Here is ur answer dear..

Step-by-step explanation

Solution

Mulitply second equation by 3 and subract first equation from it,

3(3m+2n)−(4m+6n)=3(28)−54

9m+6n−4m−6n=305m=30

m=6

Substitute in first equation,

4(6)+6n=54

6n=54−24

6n=30

n=5

Thus m=6 and n=5

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