Question

2x_1/3=1/23 три четвертых равно X -1 3,2

Answer 1

$\frac{2x-1}{3} = \frac{1}{23}$
$23*(2x - 1) = 3$
46x - 23 = 3
46x = 26
$x = \frac{26}{46} = \frac{13}{23}$


$\frac{3}{4} = \frac{x - 1}{3.2}$
4 * (x -1) = 3.2 * 3
4x - 4 = 9.6
4x = 13.6
x = 3.4