Решите уравнения: -x=15, -x=-9, 18=x+25, -34=x-16, 27=35-x, -x-3=12, 15-x=-23, -42+x=19, x-(-31)=40, 50+x=38, x+15-8=20, 34-x+9=40, x-12+7=-15, x-(-4)+11=30, x+(-18)-5=-27, 25-(x-10)=15, -14+(x+6)=-20, (x-13)-8=-5, x-22=-44+7, x+31=45-60

1. $-x = 15 \implies x = -15$ 2. $-x = -9 \implies x = 9$ 3. $18 = x + 25 \implies x = 18 - 25 \implies x = -7$ 4. $-34 = x - 16 \implies x = -34 + 16 \implies x = -18$ 5. $27 = 35 - x \implies x = 35 - 27 \implies x = 8$ 6. $-x - 3 = 12 \implies -x = 12 + 3 \implies -x = 15 \implies x = -15$ 7. $15 - x = -23 \implies x = 15 - (-23) \implies x = 38$ 8. $-42 + x = 19 \implies x = 19 + 42 \implies x = 61$ 9. $x - (-31) = 40 \implies x + 31 = 40 \implies x = 9$ 10. $50 + x = 38 \implies x = 38 - 50 \implies x = -12$ 11. $x + 15 - 8 = 20 \implies x + 7 = 20 \implies x = 13$ 12. $34 - x + 9 = 40 \implies 43 - x = 40 \implies x = 3$ 13. $x - 12 + 7 = -15 \implies x - 5 = -15 \implies x = -10$ 14. $x - (-4) + 11 = 30 \implies x + 4 + 11 = 30 \implies x + 15 = 30 \implies x = 15$ 15. $x + (-18) - 5 = -27 \implies x - 18 - 5 = -27 \implies x - 23 = -27 \implies x = -4$ 16. $25 - (x - 10) = 15 \implies 25 - x + 10 = 15 \implies 35 - x = 15 \implies x = 20$ 17. $-14 + (x + 6) = -20 \implies -14 + x + 6 = -20 \implies x - 8 = -20 \implies x = -12$ 18. $(x - 13) - 8 = -5 \implies x - 13 - 8 = -5 \implies x - 21 = -5 \implies x = 16$ 19. $x - 22 = -44 + 7 \implies x - 22 = -37 \implies x = -15$ 20. $x + 31 = 45 - 60 \implies x + 31 = -15 \implies x = -46$