1. -2x=-10 -2/-2 x =-10/-2 x=5
2. 3x=36 3/3 x=36/3 x=12
3. 27x=45 27/27 x=45/27 x= 5/3
4. 5(x-5)-10(x-2)=4(5-x)-6x 5x-25-10x+20=20-4-6x 5x-(+6x)-10x=25-20-4 11x=1 x=1
VERIFICA
5(1-5)-10(1-2)=4(5-1)-6X1 20-10=16-6 10=10
5.4+x=2x-2 4+2=2x-x 6=x
6. 3x-5=2x-3 3x-2x=5-3 x=2
7. 2x+12=3x-8 2x-3x= -12-8 -x/-1=-20/-1 x=20
8. (x:2)-6=(x:3)-2 2x-6=3x-2 2x-3x=6-2 -x/-1=4/-1 x=-4
-2x=-10 -2/-2=-10 x=5
2. 3x=36 3/3 x=36/3 x=12
3. 27x=45 27/27 x=45/27 x= 5/3
4. 5(x-5)-10(x-2)=4(5-x)-6x 5x-25-10x+20=20-4-6x 5x-(+6x)-10x=25-20-4 11x=1 x=1
VERIFICA
5(1-5)-10(1-2)=4(5-1)-6X1 20-10=16-6 10=10
5.4+x=2x-2 4+2=2x-x 6=x
6. 3x-5=2x-3 3x-2x=5-3 x=2
7. 2x+12=3x-8 2x-3x= -12-8 -x/-1=-20/-1 x=20
8. (x:2)-6=(x:3)-2 2x-6=3x-2 2x-3x=6-2 -x/-1=4/-1 x=-4
-2x=-10 -2/-2=-10 x=5
3x=36 3x/3=36/3 x=12
Nessun commento:
Posta un commento