Решите плиз уравнения: 1. -4,3-(-1,8-x)=3 2. (n+1 2/9)-4 2/9=-4.8 3.

-4.3-(-1.8-x)=3
-4.3+1.8+x=3
x=3+4.3-1.8
x=5.5

(n+1 2/9)-4 2/9= -4.8
n+1 2/9-4 2/9= -4.8
n-3= -4.8
n= -4.8+3
n= -1.8

(c-6)-(4.5-c)= -1.5
c-6-4.5+c= -1.5
2c-10.5= -1.5
2c=10.5-1.5
2c=9
c=9:2
c=4.5

1 5/6-(k-7/12)+2 1/12=0.9
1 5/6-k+7/12+2 1/12=0.9
4 1/2-k=0.9
k=4.5-0.9
k=3.6