Could any work out these equations using the substitution method please:

1.
x= 6y-2 equation 1
8y- 3x = 1 equation 2


2.
t = 1 - 7s equation 1
5s - 3t = 10 equation 2

3.
3p + 7q = 11 equation 1
p - q = -4 equation 2


4.
2d + e = -8 eqaution 1
6d - 2e = -27 equation 2


thanks