(1-3x)+(x+2)=1 ; 1.2n-1=3.4-n ; 6y-(y-1)=4=5y ; 5x=(3x-3)=6x+11

Question

(1-3x)+(x+2)=1 ; 1.2n-1=3.4-n ; 6y-(y-1)=4=5y ; 5x=(3x-3)=6x+11

Answer 1

(1-3x)+(x+2)=1
1-3x+x+2=1
-2x=1-1-2
-2x=-2
x=1
1.2n-1=3.4-n
1.2n+n=3.4+1
2.2n=4.4
n=2
6y-(y-1)=4-5y
6y-y+1=4-5y
6y-y+5y=4-1
10y=3
y=3/10
5x-(3x-3)=6x+11
5x-3x+3=6x+11
2x+3=6x+11
2x-6x=11-3
-4x=8
x=-2