Respuesta :
Answer:
Step-by-step explanation:
10+10=20
6x6=36
your welcome
a)X + Y = 20
b) X * Y = 36
Isolate Y in a: X= 20 - Y
Plug into b: (20-Y) * Y=36
20 Y - Y^2 = 36
0 = Y^2 - 20Y + 36
0 = (Y -18)(Y-2)
Y-18= 0, Y=18
Y-2= 0, Y= 2
Final answer: 2 and 18
Hope it’s clear :)
