Answer:
good for them
Step-by-step explanation:
i need more of the problem though
 
        
             
        
        
        
Answer:
Usually people don't give step by step explanations but you could explain how you solved it  for example
 x=5
Step-by-step explanation:
and then show how you solved the equation "2x=10"
 
        
             
        
        
        
Since x = y + 2
so 
y + 2 + 4y = 7
5y + 2 = 7
5y = 7-2
5y = 5
y = 1
x= y + 2
x = (1) + 2
x = 3
(x,y) = (3,1)
        
             
        
        
        
Answer:
3/4 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
x = ⁷/₅
y = ⁻²⁹/₅
Step-by-step explanation:
4x = 3y + 23 (×3)
12x = 9y + 69
4y + 3x = -19
3x = -4y - 19 (×4)
12x = -16y - 76
∴ 9y + 69 = -16y - 76
25y = -145
y = ⁻²⁹/₅
12x = 9(⁻²⁹/₅) + 69
12x = 69 - ²⁶¹/₅
12x = ⁸⁴/₅
x = ⁷/₅