3х = 12; 1. 4х =24;
-4х = 8; 2. -6у = 12;
8у = -2; 3. 16х = - 8;
-5х = -3; 4. -7х = -2;
х = 6; 5. х = 6;
у = 16; 6. - х = 56;
х = -4; 7. х = - 3;
– 3х + 5х = 2,4; 8. -2х + 3 = 5;
2(у + 1) +5(у – 0,4) = 14; 9. 3 ( х – 1) + 4( х + 0,3) = 13;
– 8х + 2х + 3х = - 12; 10. -7х + 3х + 4х = - 11;
4 ( у – 1) – 0,8(у – 5) = 32; 11. 8(у – 4) – 0,3(у – 6) = 61;
5х – (2х – 9) = 6 + ( х + 3); 12. 2х – (5х – 6 ) = 7 + ( х-1);
7х – 8 = 4х – (1 -3х); 13. 3х – 1 = 2х – (4 – х);
2х – 1 = 4х – 3; 14. 7х – 1 = 2х – 11;
у +2 = - у +5; 15. у – 3 = - у – 7;
= -4; 16. = -10;
= -6; 17. = -12;
18. -6(2х -5)= 9( х + 1);
( х + 5) = - ( х + 3); 19. (5 – х) = - (2х – 15);
(2у + 5) = (3у + 25); 20. 1 (3у – 1)= - ( 9 – 8у);
21. 4(3 + х) - 5(х + 4) = 3 – 4(х + 3);
6(1,2х – 0,5) – 1,3х = 5,9х – 3; 22. 5(1,5х – 1,2) – 4,3х = 9,3х – 8;
5(х – 1,2) -3х =2; 23. 2(х – 1,5) + х = 6;
4х = - 1 –( 11х – 5); 24. -6х = - 2 – ( 4 + 9х);
( х + 9) – 2 = х. 25. (х – 6) – 3 = х.