Question

Uprość wyrażenie
6(a+2b)+3(2a-3b)
4(b+3)+3(a-b)
7(b+c)-3(b+2c)
5(a+3)+2b-3(a+b)
6(3+z)-4(2z+4)+2(8+z)
-4(2x-7-3y)+12(-y-x)

Answer 1

6(a+2b)+3(2a-3b) =6a+12b+6a-9b=12a+3b
4(b+3)+3(a-b)=4b+12+3a-3b=3a+b+12
7(b+c)-3(b+2c)=7b+7c-3b-6c=4b+c
5(a+3)+2b-3(a+b)=5a+15+2b-3a-3b=2a-b+15
6(3+z)-4(2z+4)+2(8+z)=18+6z-8z-16+16+2z=18
-4(2x-7-3y)+12(-y-x)=-8x+28+12y-12y-12x=-20x+28

Answer 2

6a+12b+6a-9b+4b+12+3a-3b+7b+7c-3b-6c+5a+15+2b-3a-3b+18+6z-8z-16+16+2z-8x+28+12y-12y-12x=17a+3b+73+c-4x