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kirill115 [55]
3 years ago
11

Solve : 4+3x =(3x-7)+9.

Mathematics
2 answers:
lesantik [10]3 years ago
6 0
X=3
Hope this helped
dezoksy [38]3 years ago
5 0

Answer:

D.) x = 3

Step-by-step explanation:

4 + 3x = 2(3x - 7) + 9

4 + 3x = 6x - 14 + 9

3x - 6x = 9 - 14 - 4

-3x = -9

x = -(-9)/3

x = 9/3

x = 3

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Convert everything to "sin" and "cos" and then cancel out the common factors.

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\text{Cross out the common factor of (cos(x) + 1) from the top and bottom}:\\\\\bigg(\dfrac{1}{sin(x)}\bigg)\times\bigg(\dfrac{cos(x)}{sin(x)}\bigg)\\\\\\\bigg(\dfrac{1}{sin(x)}\bigg)\times cot(x)}\qquad \rightarrow \qquad \dfrac{cot(x)}{sin(x)}

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