Question

2. Solve the following simultaneous equations using
Cramer's rule : 3x+2y/5 =20;X/3+y=7


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Answer 1

Answer:

multiply 3 x + 2y upon 5 equal to 20 by 5.

and multiply x upon 3 + y equal to 7 by 3.

now the equation will be,

15x+2y=100

x+3y=21..…..1

multiply equation 1 by 15.

so, 15x+75y=351

now,

15 x +75 y =351

-

15x+2y=100

…...........…………………………

73y=251

y=251/73

Answer 2

Answer:

Step-by-step explanation:

e07ad0e9db191d77afcf5d7ceddd23e3.docx