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2 years ago

Solve: 9^2x + 1 = 9^3x – 2

Mathematics

2 answers:

nirvana33 [79]2 years ago

7 0

Answer:

1/216

Step-by-step explanation:

Move variables to one side and constants to the other

9^3x-9^2x=3

factor out 9^2x

(9^2x)(8)=3

9^2x=3/8

3^4x=3/8

3^3x=1/8

x=1/8 x 27

x=1/216

kipiarov [429]2 years ago

6 0

Answer:

x = 1/216

Step-by-step explanation:

Simplify the equation, like the powers.

81x + 1 = 729x - 2

Subtract 729x on both sides to balance the equation.

-648x + 1 = - 2

Then subtract 1 from both sides.

-648x = -3

Finally divide by -648, which then leaves x equal to 1/216

x = 1/216

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3 years ago

There are three numbers. The first number is twice the second number. The third number is twice the first number. The sum of the

mel-nik [20]

Answer:

x = 32 y = 16 z = 64

Step-by-step explanation:

x is the 1st number

y is the 2nd number

z is the 3rd number

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x = 2 y

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z = 2 x

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Plus in what we know:

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Now plug our answer back in to solve for x.

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KonstantinChe [14]

Answer:

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Step-by-step explanation:

(7h^3)(3h^7)

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21 h^(3+7)

21 h^10

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