Question

решите уравнения
1)(х+9,6)÷2=8,8
2)(11,9-х)÷3=3,3
3)(х+0,25)÷5=1,05
4)(3,75-х)÷5=0,55
5)(6,04-х)÷0,3=6,9
6)(х-6,5)÷0,5=1
7)(18,05-х)÷0,5=30,1
8)(х-3,4)•0,4=1,012​

Answer 1

Ответ:

$1) (x+9,6)/2=8,8\\ x + 9.6 = 17.6\\x = 8\\\2)(11,9-x)/3=3,3\\11.9-x = 9.9\\-x = -2\\x = 2\\3) (x+0,25)/5=1,05\\x+0,25 = 5.25\\x = 5\\\4) (3.75-x)/5 = 0.55\\3.75-x = 2.75\\-x = -1 \\x = 1\\5) (6.04-x)/0.3 = 6.9\\6.04-x = 2.07\\-x = -3.97\\x = 3.97\\6) (x-6.5)/0.5 = 1\\x-6.5 = 0.5\\x = 7\\7) (18.05-x)/0.5 = 30.1\\18.05-x =15.05\\-x = -3 \\x = 3\\8) (x-3.4)*0.4 = 1.012\\x-3.4 = 2.53 \\x = 5.93$