7.2.33

x = -3 + 2t₁

y = -2 + 3t₁

z = 6 - 4t₁

x = 5 + t₂

y = -1 -4t₂

z = -4 + t₂

-3 + 2t₁ = 5 + t₂

-2 + 3t₁ = -4 - 4t₂ 

6 - 4t₁ = -4 + t₂

-14 + 11t₁ = 19

11t₁ = 33

t₁ = 3

P = (3, 7 ,-6)

7.2.35