1) x = 7 - 3,82x = 3,18
2) x = 28,9 - 5,347x = 23,553
3) x = 68 + 23427x = 23495
4) (84 - x) + 27,8 = 3915684 - x + 27,8 = 39156110,8 - x = 39156-x = 39156 - 110,8-x = 39045,2x = -39045,2
1) x = 7 - 3,82
x = 3,18
2) x = 28,9 - 5,347
x = 23,553
3) x = 68 + 23427
x = 23495
4) (84 - x) + 27,8 = 39156
84 - x + 27,8 = 39156
110,8 - x = 39156
-x = 39156 - 110,8
-x = 39045,2
x = -39045,2