Пошаговое объяснение:
1) x+14=756:32
x=23 5/8 - 14
x= 9 5/8
2) 18x = 504
x = 504/18
x = 28
3) 16x = 240
x = 240 : 16
x = 15
4) 12y = 180
y = 180 : 12
y = 15
5) 9x = 1919 - 47
9x = 1872
x = 1872 / 9
x = 208
6) 7a - 3.5 = 7×0.9 - 3.5 = 6.3 - 3.5 =2.8
Пошаговое объяснение:
1) x+14=756:32
x=23 5/8 - 14
x= 9 5/8
2) 18x = 504
x = 504/18
x = 28
3) 16x = 240
x = 240 : 16
x = 15
4) 12y = 180
y = 180 : 12
y = 15
5) 9x = 1919 - 47
9x = 1872
x = 1872 / 9
x = 208
6) 7a - 3.5 = 7×0.9 - 3.5 = 6.3 - 3.5 =2.8