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Evgen [1.6K]
3 years ago
7

Simplify (3x + 5) + (2x - 9) - (4x + 3). A) 9x - 1 B) -9x - 1 C) -x - 7 D) x - 7

Mathematics
2 answers:
Tomtit [17]3 years ago
3 0

Answer:

option D

Step-by-step explanation:

(3x + 5 ) + ( 2x - 9 ) - ( 4x + 3 ) \\\\3x + 5 + 2x - 9 - 4x - 3\\\\(3x + 2x -4x ) + ( 5 - 9 - 3) \\\\(5x- 4x ) + ( 5 - 12 ) \\\\x - 7

4vir4ik [10]3 years ago
3 0

D is the answer

Step-by-step explanation:

(3x + 5) + (2x - 9) - (4x + 3)

=> 3x + 5 + 2x - 9 - 4x - 3

=> 3x + 2x - 4x + 5 - 3 - 9

=> x - 7

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worty [1.4K]

Answer:

No solutions

Step-by-step explanation:

9^x + 4(3^x + 1) + 27 = 0\\3^{2x} + 4 \cdot 3^x + 31 = 0

Substitute 3^x with t and we get.

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3 0
3 years ago
Please please help me
miskamm [114]

Answer:

41

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now \:  \: x = 4

3 {(4)}^{2}  - 2(4) + 1

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41 is the answer

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2 years ago
In ∆ABC the angle bisectors drawn from vertices A and B intersect at point D. Find m∠ADB if: m∠C=γ
mylen [45]

Answer:

  ∠ADB = γ/2 +90°

Step-by-step explanation:

Here's one way to show the measure of ∠ADB.

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Substituting for (α + β) in the second equation, we get ...

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  ∠ADB = γ/2 + 90° . . . . . . . divide by 2

_____

To find angles CXD and CYD, we observe that these are exterior angles to triangles AXB and AYB, respectively. As such, those angles are equal to the sum of the remote interior angles, taking into account that AY and BX are angle bisectors.

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Answer:

(4)(2)(1)=

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