Question

Решите уравнения: 28+(45+х)=100 52-(19+х)=17 Школа№10 №556

Answer 1

28 + ( 45 + X ) = 100 
28 + 45 + X = 100 
X = 100 - 28 - 45 
A = 27
-------------------
52 - ( 19 + X ) = 17 
52 - 19 - X = 17 
33 - X = 17 
X = 33 - 17
X = 16

Answer 2

..