100% please.

1. Solve the system of two equations using substitution.
y = 2 + 3x
4x - 3y = -16
2. Solve the system of equations.
2x + 6y = -18
x = 5y - 1
3. Solve the system of equations.
3x + y = 2
7x - 4y = 30
4. Solve the system of equations.
-4x + 6y = 38
x - 5y = -20
5. How many solution(s) does the system of equations have?
-5x + y = -18
10x + 2y = 36

This system has one solution.