Question

solve using cramer's rule 3m+2n=10 and m+2n=4

Answer 1

Det:

3 2
1 2 -----> 6-2 = 4

D_m:
10 2
4 2 ----> 20-8 = 12

D_n:
3 10
1 4 ---> (12 - 10) = 2

m = 12/4 = 3
n = 2/4 = 1/2