1) 8x - 4x + 5 = 252) (y - 12) * 36 =12603) 851 : (13 + x) = 374) (x - 12) : 13 =...

Question

1) 8x - 4x + 5 = 25
2) (y - 12) * 36 =1260
3) 851 : (13 + x) = 37
4) (x - 12) : 13 = 82
Розв'язаты ривняння

Answer 1

1)8x - 4x + 5=25
4x = 25-5
4x = 20
x = 5.
2)(y-12)*36=1260
36y - 432 = 1260
36y = 1260 +432
36y = 1692
y = 47.
3)851 : (13 + x) = 37
37(13 + x) = 851
481 + 37x = 851
37x = 851 - 481
37x = 370
x = 10.
4) (x - 12) : 13 = 82
x - 12 = 13 * 82
x - 12 = 1066
x = 1066 + 12
x = 1078.