Решите уравнение:(1цел1/12+3,75)-(-х)=4,5;-(5цел2/3-1,6)-х=6цел1/3.

1) $(1 \frac{1}{12}+3,75)-(-x)=4.5$
$1 \frac{1}{12}+3,75+x=4.5$
$x=4.5-3.75-1 \frac{1}{12}$
$x=0.75-1 \frac{1}{12}$
$x= \frac{75}{100} -1 \frac{1}{12}$
$x= \frac{3}{4} -1 \frac{1}{12}$
$x= \frac{9}{12} -\frac{13}{12}$
$x=- \frac{4}{12}$
$x=- \frac{1}{3}$
2) $-(5 \frac{2}{3}-1.6)-x=6 \frac{1}{3}$
$-5 \frac{2}{3}+1.6-x=6 \frac{1}{3}$
$x=6 \frac{1}{3}+5 \frac{2}{3}-1.6$
$-x=11 \frac{3}{3}-1.6$
$x=12-1.6$
$x=10.4$