Electric Scooters for Adults Grand Prairie Texas

Electric Scooters for Adults Grand Prairie Texas

Matematika tentukan nilai x yang memenuhi persamaan
9^2×1=(1/27)^×-2​

tentukan nilai x yang memenuhi persamaan
9^2×1=(1/27)^×-2​

Penjelasan dengan langkah-langkah:

[tex] {9}^{2} \times 1 = ( \frac{1}{27} {)}^{x - 2} [/tex]

[tex] = {3}^{2} (2x - 1) = {3}^{ - 3} (x - 2) \\ [/tex]

[tex] = 4x - 2 = - 3x + 6[/tex]

[tex] = 4x + 3x = 6 + 2[/tex]

[tex] = 7x = 8[/tex]

[tex]x = \frac{8}{7} [/tex]

x = 4/7

Penjelasan dengan langkah-langkah:

[tex] {9}^{2x + 1} = { (\frac{1}{27} )}^{x - 2} [/tex]

[tex] {( {3}^{2}) }^{2x + 1} = {( {3}^{ - 3}) }^{ x - 2} [/tex]

[tex] {3}^{2(2x + 1)} = {3}^{ - 3( x - 2)} [/tex]

[tex] {3}^{4x + 2} = {3}^{ - 3x + 6} [/tex]

[tex]4x + 2 = - 3x + 6[/tex]

4x + 3x = 6 - 2

7x = 4

x = 4/7

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