Answer:
x = 15
Step-by-step explanation:
y = family members = 7
x = cost of ticket
7x + 6y = 147
Substitute 7 for y:
7x + 6(7) = 147
7x + 42 = 147
Subtract 42 on both sides:
7x + 42 = 147
      - 42    -42
7x = 105
Divide both sides by 7:
7x = 105
x = 15
 
        
             
        
        
        
Doubling the side length multiplies the area by 4
        
             
        
        
        
6×(1×5)=(6×1)×5
6×5=6×5
30=30
Always do the brackets first. 
Follow BEDMAS
B = Brackets
E = Exponent
D = Division 
M = multiplication 
A = Addition
S = Substruction
 
        
             
        
        
        
Answer:
8x+5005073
Step-by-step explanation: