Question

Va rog Ex 4 am pentru mâine la matematica :(

Answer 1

$a)-x=\frac{4}{5}=>x=-\frac{4}{5}$

$b)-x=-\frac{9}{4}|(-1)=>x=\frac{9}{4}$

$c)-x=2\frac{1}{4}=>x=-2\frac{1}{4}$

$d)-x=-3\frac{5}{11}|(-1)=>x=3\frac{5}{11}$

$e)-x=-(-\frac{9}{14})=>-x=+\frac{9}{4}=>x=-\frac{9}{4}$

$f)-x=-(-\frac{3}{8})=>-x=+\frac{3}{8}=>x=-\frac{3}{8}$

$g)-x=-(-1,5)=>-x=+1,5=>x=-1,5$

$h)-x=-(-(-\frac{5}{9})))=>-x=-(+\frac{5}{9})=>-x=-\frac{5}{9}|(-1)=>x=\frac{5}{9}$