Question

СРОЧНО ДАЮ 20 БАЛЛОВ
$1frac{3}{4}*(g-1,2)=5,5$
$1frac{2}{3} *(5x-frac{1}{2})=frac{7}{9}$

Answer 1

1)

$1 frac{3}{4} times (g - 1.2) = 5.5$

$frac{7}{4} times (g - frac{6}{5} ) = frac{11}{2}$

$frac{7}{9} g - frac{21}{10} = frac{11}{2}$

$35g - 42 = 110$

$35g = 110 + 42$

$35g = 152$

$g = frac{152}{35}$

2)

$1 frac{2}{3} times (5x - frac{1}{2} ) = frac{7}{9}$

$frac{5}{3} times (5x - frac{1}{2} ) = frac{7}{9}$

$frac{25}{3} x - frac{5}{6} = frac{7}{9}$

$150x - 15 = 14$

$150x = 14 + 15$

$150x = 29$

$x = frac{29}{150}$