Question

решите уравнение (7/18 + 5/24z) : 3 2/3 = 1/3

Answer 1

$( frac{7}{18} + frac{5}{24} z) div 3 frac{2}{3} = frac{1}{3}$
ноз (18, 24)=72
$( frac{28}{72} + frac{15}{72} z) div frac{11}{3} = frac{1}{3}$

$frac{43}{72} div frac{11}{3}z = frac{1}{3}$

$frac{43}{72} times frac{3}{11} z = frac{1}{3}$

$frac{43}{264} z = frac{1}{3}$

$z = frac{1}{3 } div frac{43}{264}$

$z = frac{1}{3} times frac{264}{43}$

$z = frac{88}{43}$

z=1 2/43