Question

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

a) a +a -b=2a-b

b)2x-x -4=x-4

c)7+x-6=x+1

d)-x-4+x-5=-9

e)1-t-p-t+2=-2t-p+3

f)+y-2-2y-4=-y-6

Answer 2

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 = 3-2t-p

f)

-(-y+2) + (-2y-4) = y-2 -2y-4 = -y-6