Question

1 вторая x +3=4 x решить уравнение

Answer 1

$\frac{1}{2} x + 3 = 4x \\ \\ \frac{1}{2} x - 4x = - 3 \\ \\ - 3.5x = - 3 \\ \\ x = \frac{ - 3}{ - 3.5} \\ \\ x = \frac{6}{7}$
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Answer 2

0.5х+3=4х;

4х-0,5х=3;

3,5х=3;

з=3/3,5=3:7/2=6/7...