Question

Развязать ривняння 0,92:(12,6х-7,8)=2,5

Answer 1

$0.92 \div (12.6x - 7.8) = 2.5 \\ 12.6x - 7.8 = 0.92 \div 2.5 \\ 12.6x - 7.8 = 9.2 \div 25 \\ 12.6x - 7.8 =0.368 \\ 12.6x = 0.368 + 7.8 \\ 12.6x = 8.168 \\ x = 8.168 \div 12.6 \\ x = \frac{1021}{125} \div \frac{63}{5} \\ x = \frac{1021 \times 5}{15 \times 63} \\ x = \frac{1021 \times 1}{25 \times 63} \\ x = \frac{1021}{1575}$