Pls help with atleast one plsss, thank you so much :') Solve each system using SUBSTITUTION. Remember to check!

1)

y = –2x – 1

y = 3x – 16

2)

y + 6 = 2x

4x – 10y = 4

my answer for #1 is: x=3 y = -7 is this correct? pls correct me

You are living in aldine, tx and you are planning a trip to six flags in arlington, tx. you look on a map that has a scale of 0.5 inches to 30 miles. if the map shows the scale distance from aldine to arlington is 4 inches, how far is the actual distance?