Решите уравнения пожааалуйста 9-(8x-11)=12 (6x+1)-(3-2x)=14 2x-(6x-5)=45 5x-(7x+7)=9 2x-(6x+1)=9 4x-(7x-2)=17 2x+7=3x-2(3x-1) 4-2(x+3)=4(x-5) 5x+3=7x-5(2x+1) 3y-(5-y)=11

1. 9 —(8x — 11) = 12 9 — 8x + 11 = 12 —8x = 12 — 20 = —8; x = 1; 2. (6x + 1) —(3 — 2x) = 14 6x + 1 — 3 + 2x = 14 6x + 2x = 14 + 2 8x = 16; x = 2; 3. 2x —(6x — 5) = 45 2x — 6x + 5 = 45 2x — 6x = 45 — 5 —4x = 40; x = —10; 4. 5x —(7x + 7) = 9 5x — 7x — 7 = 9 5x — 7x = 9 + 7 —2x = 16; x = —8; 5. 2x —(6x + 1) = 9 2x — 6x — 1 = 9 2x — 6x = 9 + 1 —4x = 10; x = —2,5; 6. 4x —(7x — 2) = 17 4x — 7x + 2 = 17 4x — 7x = 17 — 2 —3x = 15; x = —5;  7. 2x + 7 = 3x — 2 * (3x — 1) 2x + 7 = 3x — 6x + 2 2x — 3x + 6x = 2 — 7 5x = —5; x = —1; 8. 4 — 2 * (x + 3) = 4 * (x — 5) 4 — 2x — 6 = 4x — 20 —2x — 4x = —20 — 4 + 6 —6x = —18; x = 3; 9. 5x + 3 = 7x — 5 * (2x + 1) 5x + 3 = 7x — 10x — 5 5x — 7x + 10x = —5 — 3 8x = —8; x = —1; 10. 3y —(5 — y) = 11 3y — 5 + y = 11 3y + y = 11 + 5 4y = 16; y = 4.