There is no variables here
Answer:12
Step-by-step explanation:They are adding three box for every building so is the fifth block you do it
Step-by-step explanation:
i)
2(x+2)=7
2x+4=7
2x=7-4
2x=3
x=3/2
ii)3x + y =8 , y=x
3x + x = 8
4x = 8
x = 2
I can use a chart by numbers them on the chart because I think 4 should be after the 3
Here are the answers:
1.) DC=D’C’
2.) 3.) ED=E’D’
