Graph 5x+y=3x+2 in slope intercept form

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds

X+ y = 5 ; x - y =3 solve using linear combination

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?