Question

1) 5a- (a+1)
2) 2x-(3-5-x)
3) 5a - (2-x) + y - 2x + 5
4) 3/4 - (1/4x - 1/2 )
5) 7k - (m - 2n + k ) - (5k -3 ) + (2k - 1)
6) (a+b) + (a-b) + (a+b) + (a-b)

:) Wyrażanie algebraiczne .;3

Answer 1

1)

5a- (a+1)= 5a-a-1=4a-1

2)

2x-(3-5-x)=2x+2+x= 3x+2

3)

5a - (2-x) + y - 2x + 5= 5a-2+x+y-2x+5= 5a-x +y+3

4)

3/4 - (1/4x - 1/2 )= 3/4-1/4x+1\2=-1\4x+5/4

5)

7k - (m - 2n + k ) - (5k -3 ) + (2k - 1)= 7k-m+2n-k-5k+3+2k-1=3k-m+2n+2

6)

(a+b) + (a-b) + (a+b) + (a-b)= a+b+a-b+a+b+a-b=4a