Question

Determina valuarea lui a din:

$(324 \div 6 + 345 \div 5) \times 2 + 1237 = 43 \times a + 135$
Va rog ajutatimaaa
Dau coroana

​

Answer 1

Răspuns:

(54+69)×2+1237=43×a+135

123×2+1237=43×a+135

246+1237=43×a+135

1483=43×a+135

43×a=1483-135

43×a=1348

a=1348:43

a=31 rest 15