Question

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Answer 1

Răspuns:

a)

$\frac{x +2 }{3} = \frac{18}{6} \\ \\ \frac{x + 2}{3} = 3 \ \\ \\ x + 2 = 9 \\ \\ x = 7$

b)

$\frac{7}{4} = \frac{x - 3}{5} \\ \\ 35 = 4(x - 3) \\ \\ 35 = 4x - 12 \\ \\ - 4x = - 47 \\ \\ x = \frac{47}{4}$

c)

$\frac{3x - 2}{5} = \frac{8}{6} \\ \\ 3(3x - 2) = 20 \\ \\ 9x - 6 = 20 \\ \\ x = \frac{26}{9}$