Zapisz wyrażenia, nie używając nawiasów. Zredukuj wyrazy podobne a) 3b+(b+1)=..... b)8n-3+(-5n+7)=..... c)5a-(a+1)=..... d)6x-(3+5x)=.... e)8-3y-(-7-y+5)=..... f)3+(8a-5)-(5u+2)=..... g)7z-(3-4)+(5+z)=.. POMOCY PLISS !!!!

a) 3b+(b+1)=3b+b+1=4b+1 b) 8n-3+(-5n+7)=8n-3-5n+7=-3n-4 c) 5a-(a+1)=5a-a-1=4a-1 d) 6x-(3+5x) =6x-3-5x=x-3 e) 8-3y-(-7-y+5)=8-3y+7+y-5=-2y+10 f) 3+(8a-5)-(5u+2)=3+8a-5-5u-2=8a-5u+1 g) 7z-(3-4)+(5+z) =7z-3+4+5+z=8z+6

a).3b+(b+1) = 3b+b+1 = 4b+1 b).8n-3+(-5n+7) = 8n-3-5n+7 = 3n+4 c).5a-(a+1) = 5a-a-1 = 4a-1 d).6x-(3+5x) = 6x-3-5x = x-3 e).8-3y-(-7-y+5) = 8-3y+7+y-5 = -2y+10 f).3+(8a-5)-(5u+2) = 3+8a-5-5u-2 = 8a-5u-4 g).7z-(3-4)+(5+z) = 7z-(-1)+5+z = 7z+1+5+z = 8z+6