Question

(50 баллов )Решите способом сложения систему уравнения:

Answer 1

2x + y = 12    /*2
7x - 2y = 31

4x + 2y = 24
7x - 2y = 31
------------------ + 
11x = 55
x =  5

y = 12 - 2x = 12  - 10 = 2 

Answer 2

Vashe zadanie resheno

Answer 3

Solving the System of Equations

To solve the system of equations using addition, we need the actual equations. Unfortunately, the provided search results do not contain the necessary information to determine the equations. Could you please provide the equations you would like me to solve? Once I have the equations, I will be able to assist you further.