Question

-10/11x+1=17/22
x+7/8=3/4
x-2/3×5/4=5/12​

Answer 1

Răspuns:

Explicație pas cu pas:

$- \frac{10}{11} x + 1 = \frac{17}{22}$

$- \frac{10}{11} x = \frac{17}{22} - {}^{22)} 1$

$- \frac{10}{11} x = \frac{17}{22} - \frac{22}{22}$

$- \frac{10}{11} x = - \frac{5}{22}$

$x = - \frac{5}{22} : \Big( - \frac{10}{11}\Big) = \frac{ \not5}{ \not22} \cdot \frac{ \not11}{ \not10} = \frac{1}{2} \cdot \frac{1}{2} = \boxed{\frac{1}{4}}$

_______________

$x + \frac{7}{8} = \frac{3}{4}$

$x = \frac{ {}^{2)} 3}{4} - \frac{7}{8} = \frac{6}{8} - \frac{7}{8} = \boxed{ - \frac{1}{8} }$

_______________

$x - \frac{2}{3} \cdot \frac{5}{4} = \frac{5}{12}$

$x - \frac{10}{12} = \frac{5}{12}$

$x = \frac{5}{12} + \frac{10}{12} = \frac{15 {}^{(3} }{12} = \boxed{ \frac{5}{4} }$