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salantis [7]
3 years ago
8

Please Simplify these expressions:

Mathematics
2 answers:
Dahasolnce [82]3 years ago
6 0

Answer:

.

Step-by-step explanation:

1.2a+4a+10-6

=6a+4.

2.-7+7+3x-5x

=-2x.

3.-15b+10+10b

-15b+10b+10

=-5b+10

4.-8-6-4d+d+3b

-14-3d+3b.

weeeeeb [17]3 years ago
3 0

Answer:

1) 2a+4a+10-6= 6a + 4

2) 3x-5x+7-7= -2x

3) - 15b+10 +10b= -5b + 10

4) - 4d+d-8-6+3b= - 3d - 14 +3b

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I need help with this problem due tonight 10 points!!!
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4 0
2 years ago
Please answer this im so confused
-Dominant- [34]

Step-by-step explanation:

  1. Since,in question 21 the trspezium is an isoseles tapizium
  2. therefore,9x-17=4x+28
  3. 5x=45
  4. x=9
  5. therefore q=9x-17
  6. =9*9-17
  7. =81-17
  8. q=64
  9. therefore 2t=360-128(since its isoseles triangle therefore adjacent base angles are equal)
  10. 2t=23
  11. t=116
  • In question 28
  1. 2(K+M)=360
  2. 2(3x+16 + 11x-18)=360
  3. 2(14x-2)=360
  4. 28x-4=360
  5. 28x=364
  6. x=13
  7. J=K
  8. Isoleses angles are equal
  9. 3x+16=J
  10. 39+16=J
  11. J=55
  • In question 29
  1. Bd=Ec (Congeruent sides of congurent trisnle are equal,BED~=CDE)
  2. 8x-27=2x+33
  3. 6x=60
  4. x=10
  5. Therefore,Bd=8x-27
  6. Bd=80-27
  7. Bd=53
4 0
3 years ago
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