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pshichka [43]
3 years ago
11

How do I solve this? 3ˣ⁻⁷ = 27ˣ

Mathematics
2 answers:
Annette [7]3 years ago
6 0
X=-3.5 ................
Mekhanik [1.2K]3 years ago
3 0

Answer:

x = -3.5

Step-by-step explanation:

3^x^-^7 = 27^x    (By converting both sides to have the same bases, we can then evaluate the exponents. Substitute 27 with 3^3)

3^x^-^7 = (3^3)^x    (Since the x is outside the parenthesis on the LHS, we can multiply the exponents)

3^x^-^7 = 3^3^x    (Now that the bases are equal, we can set the exponents equal to each other and then solve for them)

x - 7 = 3x    (Subtract x from both sides)

-7 = 2x    (Divide both sides by 2)

x = -3.5

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sergeinik [125]

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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
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Scorpion4ik [409]

Answer:

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8 0
3 years ago
What is the rational exponential form of <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7Bx%20%7B%7D%5E%7B2%7D%20%7D%20
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3 years ago
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Tema [17]
<span>5x^2 = 45</span>

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3 0
4 years ago
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(X^-5y/y^3)^-1=<br><br> A)x^5/y^2<br> B)y^2/x^5<br> C)x^5 y^2<br> D)x^5 y^-3
Nezavi [6.7K]

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3 0
2 years ago
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