Вариант 1.
1) x₁ = 6; x₂ = 5
2) x₁ = -7; x₂ = -8
3) x₁ = 20; x₂ = 3
4) x₁ = -17; x₂ = -3
5) x₁ = 3; x₂ = 5
6) x₁ = -5; x₂ = -5
7) x₁ = -6; x₂ = 7
8) x₁ = -9; x₂ = 5
9) x₁ = -2; x₂ = 4
10) x₁ = 4; x₂ = 10
11) x₁ = -2; x₂ = -6
12) x₁ = -10; x₂ = 6
13) x₁ = 7; x₂ = 9
14) x₁ = -11; x₂ = -9
15) x₁ = 12; x₂ = -2
16) x₁ = -8; x₂ = 9
17) x₁ = 15; x₂ = 10
18) x₁ = -4; x₂ = -7
19) x₁ = 2; x₂ = -5
20) x₁ = -12; x₂ = 6
21) x₁ = 8; x₂ = 11