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Sav [38]
3 years ago
15

Help pls!!!! Pls explain how you got the answer if you can!!! Have a blessed day

Mathematics
2 answers:
iVinArrow [24]3 years ago
5 0

Answer:

<em>B and D</em>

Step-by-step explanation:

14x - 7x + 21

Simplifies into

B. 7x + 21

 When you combine like terms 14x and 7x, you'll subtract 7 from 14, which gives you 7x and you add 21 just as before.

D. 7(x + 3)

 When you simplify after combining like terms, you can factor. 7 is a factor in both itself and 21. So 7x / 7 = x and 21 / 7 = 3. Which gives you 7(x + 3)

Dahasolnce [82]3 years ago
3 0

Answer:

a) 7 (x + 2)  

b) 7 (x + 3)  

c) 21 (x + 1)  

d) = 7x + 21  

e) = 14x + 147  

f)  = 7x + 147

Step-by-step explanation:

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Using thereoms/postulates, we know that the 60° angle and the (5z - 85)° angle are congruent

so to first find z..
60 = 5z - 85
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now that we know z, we can find x
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