Question

1.Wykonaj działania :
a)a + ( a - b )=
b)2x - ( x + 4 )=
c)7 - ( - x + 6 )=
d)- ( x +4 ) + ( x - 5)=
e)1 - ( t + p ) - ( t - 2 )=
f) - ( -y + 2 ) + ( - 2y - 4 )=

Answer 1

1.Wykonaj działania :
a)a + ( a - b )=a+a-b=2a-b
b)2x - ( x + 4 )=2x-x-4=x-4
c)7 - ( - x + 6 )=7+x-6=x+1
d)- ( x +4 ) + ( x - 5)=-x-4+x-5=-9
e)1 - ( t + p ) - ( t - 2 )=1-t-p-t+2=-2t-p+3
f) - ( -y + 2 ) + ( - 2y - 4 )=y-2-2y-4=-y-6