Respuesta :
Answer: 3x+5y=9 , 5x+3y=7
Step-by-step explanation:
by doing substituion methob
3x=9-5y
x=(9-5y)/3
putting the value in equation 2 then we get
5 (9 - 5y)/ 3 + 3y=7
45 - 25 y + 3y equals 21
45 - 21 equals 25 y - 9 y
24 equals 16 y
y equals 24 / 16
putting value of y in equation 1 then we get
3 x + 5 * 24 / 16 equals 9
3x equals 9 - 15 / 2
3x plus (18 -15) 2
x equals 1 / 2
so our answer is
ax equals 1 / 2 + 3 / 3
taking I.c.m bothside
LCM equals 2
then 4/2
