Question

Решите уравнение 4(0,7х-4)-3(-0,2+6)=0

Answer 1

$4(0.7x - 4) - 3( - 0.2 + 6) = 0 \\ 2.8x - 16 + 0.6 - 18 = 0 \\ 2.8x = 16 - 0.6 + 18 \\ 2.8x = 33.4 \\ x = \frac{33.4}{2.8} = \frac{334}{28} = \frac{167}{14} = 11 \frac{11}{14} \\ x = 11 \frac{11}{14}$......................

Answer 2

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