Question

решите уравнения 

1. 10-2,4х = 3,16

2. (y + 26,1) * 2,3 = 70,84

3. (z - 1,2) :  0,6 = 21,1

Answer 1

1. 2.4х = 10-3.16  2.4х=6.84 х=2.85 2. 2.3у + 60.03 = 70.84 / 2.3у =10.78 / у = 4.69 3. z : 0.6 - 2 = 21/1 | z : 0.6 =23.1 | z = 23.1 * 0.6 | z = 13.86

Answer 2

3 я не понимаю