Question

Dau Coroană. Va rog
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Answer 1

Răspuns:

a)

$x = 14.8 - 8.9 \\ \\ x = 5.9$

b)

$x = 6.7 + 14.8 \\ \\ x = 21.5$

c)

$x = 12.5 - \frac{2x}{3} \: \ \: \: \: \: \times 3 \\ \\ 3x = 37.5 - 2x \\ \\ 5x = 37.5 \\ \\ x = 7.5$

d)

$x = \frac{x}{3} + 11.2 \: \: \: \times 3\\ \\ 3x = x + 33.6 \\ \\ 3x - x = 33.6 \\ \\ 2x = 33.6 \\ \\ x = 16.8$

Succes! ♡︎♥︎♡︎