Sometimes it will, and sometimes it won't.
I reason as follows:
(21 + x) + (30 + 2x) = 51 + 3x has an 'x' term
(42 + x) + (30 - x) = 72 has no 'x' term.
Answer:

Step-by-step explanation:
Given: Height: x
Base: 
Now, finding the area of triangle.
Formula; Area of triangle= 
⇒ Area of triangle= 
⇒ Area of triangle= 
Hence, area of triangle= 
Answer:
x = - 71
Step-by-step explanation:
x - 12 = - 83
+12 +12 (adding 12 to both sides)
x = - 71
Answer:
TshirtsyouyouyouyouyouyouyouyouyouyouyouyouyouisisyouyouIIisisyou
Step-by-step explanation:
pr.nepaltheyouyouyouyouyouyouyouyouyouyouyouisisisyouyouyou
the correct answer is, B.
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