Respuesta :

#1

2 solutions

  • As there are 2 variables namely x and y.

#2

No solution

  • a1/a2=b1/b2[tex]\neq[/tex]c1/c2

#3

Option A

  • multiply 2 with eq(1) and 1 with eq(2)

#4

Option D

  • Multiply 2 with eq(2)