1) (1,7+10x)/3 = 21,7 + 10x = 610x = 6 - 1,710x = 4,3x = 4,3 / 10x = 0,43
2) (15,8-10x)/4 = 315,8 - 10x = 12-10x = 12 - 15,8-10x = -3,8x = -3,8 / -10x = 0,38
3) (16,3-100x)/2 = 516,3 - 100x = 10-100x = 10 - 16,3-100x = -6,3x = -6,3 / -100x = 0,063
4) (100x+4,6)/5 = 3100x + 4,6 = 15100x = 15 - 4,6100x = 10,4x = 10,4 / 100x = 0,104
Ответ: x = 0,43; x = 0,38; x = 0,063; x = 0,104
1) (1,7+10x)/3 = 2
1,7 + 10x = 6
10x = 6 - 1,7
10x = 4,3
x = 4,3 / 10
x = 0,43
2) (15,8-10x)/4 = 3
15,8 - 10x = 12
-10x = 12 - 15,8
-10x = -3,8
x = -3,8 / -10
x = 0,38
3) (16,3-100x)/2 = 5
16,3 - 100x = 10
-100x = 10 - 16,3
-100x = -6,3
x = -6,3 / -100
x = 0,063
4) (100x+4,6)/5 = 3
100x + 4,6 = 15
100x = 15 - 4,6
100x = 10,4
x = 10,4 / 100
x = 0,104
Ответ: x = 0,43; x = 0,38; x = 0,063; x = 0,104