Pilnie Potrzebuje dziek z g óry 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)= Dziękuje z Góry

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

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)= 3-2t-p f] -(-y+2)+(-2y-4)= -y-6

1. a+(a-b)= a +a-b = 2a-b 2. 2x-(x-4)= 2x- x+4 = x+4 3. 7-(-x+6)= 7 +x-6 = x+1 4. -(x+4)+(x-5)= -x-4 +x-5 = -9 5. 1-(t+p)-(t-2)= 1-t-p-t+2 = -2t-p+3 6. -(-y+2) + (-2y-4)= y- 2-2y -4 = -y -6