Answer:
9
Step-by-step explanation:
You cant take it away with both numbers it makes it hader just use one on a number like this!
x = 17
Subtract 8 from both sides
x - 8 = 17- 8
x - 8 = 9
answer is 360
multiply length times width
x=21
2x - 7 = 35
+7 +7
-----------------
2x = 42
----- -----
2 2
x = 21
The answer is 21, hope this helps.