Question

2a + a ÷ 2= 1293

Rezolvati.

Answer 1

METODA 1

$\\ {}^{2)} 2a + \frac{a}{2} = {}^{2)} 1293 \\ \\ \frac{4a}{2} + \frac{a}{2} = \frac{2586}{2} \\ \\ 4a + a = 2586 \\ 5a = 2586 \\ a = \frac{2586}{5} \\ \\ a = 517.2$

METODA 2

$2a + \frac{a}{2} = 1293 \\ 2a + 0.5a = 1293 \\ 2.5a = 1293 \\ a = 1293 \div 2.5 \\ a = 12930 \div 25 \\ a = 517.2$

BAFTA!!

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