Respuesta :
3x+5y= 20
3(10)+5y= 20
30+5y= 20
-30 -30
——————
5y=-10
———-
5 5
y = -2
(10,-2)
Answer: (10,-2)
3(10)+5y= 20
30+5y= 20
-30 -30
——————
5y=-10
———-
5 5
y = -2
(10,-2)
Answer: (10,-2)
Answer:
X=10
Y=-2
Step-by-step explanation: The value of X is given therefore you use it to find the value of Y in the equation:
3(10)+5y=20
5y=20-30
5y=-10
5y/5=-10/5
5 is cancelled out leaving y=-2
I hope this helps. :)