X=3 because you subtract the three on both sides to get x alone. So you get: 7x=21 then you divide seven by 21 and get x=3
Answer:
21
Step-by-step explanation:
Answer:
26
Step-by-step explanation:
duh....
Answer:
9+10=90
Step-by-step explanation:
10x9=90
I hope it helps:)
Hey
Area of first rectangle = 18 x 21 = 378 in^2
Area of second rectangle = 17 x 9 = 153 in^2
Total area = 378+153 = 531 in^2
Option 1
Hope this helps :)
