Question

1.

(-2)-(-7)=

2-4=

(-3)-(-3)=

4-3=

5-7=

2+(-2)=

(-14)+11=

1-1=

5-5=

(-7)-(-3)=

(-7)+7=

(-2)-3=

(-6)-(-6)=

4+(-6)=

1-(-3)=

12-17=

(-5)+6=

(-2)-(-5)=

2.Różnica dwóch liczb jest ruwna 4 ,a suma tych liczb wynosi-2.zgadnij ,jakie to liczby

Answer 1

-2+7=5

2-4=2

-3+3=0

4-3=1

5-7=-2

2-2=0

-14+11=-3

1-1=0

5-5=0

-7+3=-4

-7+7=0

-2-3=-5

-6+6=0

4-6=-2

1+3=4

12-17=-5

-5+6=1

-2+5=3



2.
suma dodawanie
różnica odejmowanie

1+3=4
1-3=-2

odp są to liczby 1 i 3

Answer 2

(-2)-(-7)= -2 +7 = 5

2-4= -2
(-3)-(-3)= -3+3 = 0
4-3= 1
5-7= -2
2+(-2)= 0
(-14)+11= -3
1-1= 0
5-5= 0
(-7)-(-3)= -7 +3 = 4
(-7)+7= 0
(-2)-3= -5
(-6)-(-6)= -6+6 = 0
4+(-6)= 4-6 = 2
1-(-3)= 1+3 = 4
12-17= -5
(-5)+6= -1
(-2)-(-5)= -2+5 = 3

 

 

Zadanie 2.

x-y =4

x+y = -2 

 

 

2x = 2 / 2

x = 1

 

 

1-y = 4

-y = 4-1

-y = 3

y = -3