Question

Atividade de R.P.M
Teorema de Tales​

Answer 1

Explicação passo-a-passo:

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$\dfrac{3}{x} = \dfrac{6}{18}$

$6 \times x = 18 \times 3$

$6x = 54$

$\dfrac{54}{6}$

$9$

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$\dfrac{2x + 2}{8} = \dfrac{4x - 12}{12}$

$\dfrac{2(x + 1)}{8} = \dfrac{4(x - 3)}{12}$

3(x+1)=4(x-3)

3x+3=4x-12

3x-4x=-12-3

-x=-15(-1)

x=15

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$\dfrac{x}{8} = \dfrac{3}{6}$

$6 \times x = 8 \times 3$

$6x = 24$

$x = \dfrac{24}{6}$

x=4