Question

решите уравнение 
-5x=30
-0.8x=-5.6
-7x=4
-6x=-8
$frac{2}{3}$x=-$frac{3}{8 }$

Answer 1

-5x=30  | -5
x=-6
-0.8x=-5.6  | -0.8
x=7
-7x=4 | -7
x=$frac{4}{7}$
-6x=-8 | -6
x=$frac{8}{6}$
$frac{2}{3}$x=-$frac{3}{8}$  | $frac{2}{3}$
x=-$frac{9}{16}$