Zamień iloczyn na sumę 1 3(x-3) 2 5(y+z) 3 4(3x-y) 4 3(4a-c) 5 -2(7-4n) 6 1/2(4z+2) 7 -1/3(6c-3) 8 0,2(x-5y) 9 3(1/3a+1) /-kreska ułamkowa

3(x-3)= 3x -9 5(y+z)= 5y+ 5z 4(3x-y)= 12x- 4y 3(4a-c)= 12a - 3c -2(7-4n)= -14 +6n 1/2(4z+2)= 2z +1 -1/3(6c-3)= -2c + 1 0,2(x-5y)= 0,2 x - y 3(1/3a+1)= a+ 3

1. 3x- 3 2. 5y+ 5z 3. 12x- 4y 4. 12a- 3c 5. -14+ 8n 6. 2z+ 1 7. -2c+ 1 8. 0,2x- y 9. a+ 3

1 3(x-3)=3x-9 2 5(y+z)=5y+5z 3 4(3x-y)=12x-4y 4 3(4a-c)=12a-3c 5 -2(7-4n)=-14+8n 6 ½(4z+2)=½*4z+½*2=2z+1 7 -⅓(6c-3)= -⅓*6-3*( -⅓)=-2c+1 8 0,2(x-5y)=0,2x-0,2*5y=0,2x-y 9 3(⅓a+1)=3*⅓a+3*1=a+3