2p+9=25
2p=25-9
2p = 16
p = 8
You can prove this is true because
8 pens plus 8+9 pencils are 25
37: Is a parallelagram
38 Is Not
39: Is
- 4 + y i = x + 3 i
- 4 = x, y i = 3 i ;
x = - 4, y = 3
Answer:
( x, y ) = ( - 4 , 3 )
You have to take the two on the right and subtract it from the two on the left
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