Uprość wyrażenie;
1. 6(a+2b) -3(2a - 3b)=
2. 4 (b+3) + 3 (a-b)=
3. 7 (b +c ) - 3 (b+ 2c)=
4. 5 (a + 3 ) + 2b - 3 (a +b )=
5. 6 (3 +z ) - 4 (2z +4 ) + 2 (8 + z)=
6. - 4 (2 x - 7 - 3 y) - 12 (- y - x)=
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1. 6(a+2b) -3(2a - 3b)=
6a+12b-6a+9b=21b
2. 4(b+3) + 3 (a-b)=
4b+12+3a-3b=3a+b+12
3. 7(b +c ) - 3 (b+ 2c)=
7b+7c-3b-6c=4b+c
4. 5 (a + 3 ) + 2b - 3 (a +b )=
5a+15+2b-3a-3b=2a-b+15
5. 6 (3 +z ) - 4 (2z +4 ) + 2 (8 + z)=
18+6z-8z-16+16+2z=18
6. - 4 (2 x - 7 - 3 y) - 12 (- y - x)=
-8x+28+12y+12y+12x=4x+24y+28
Mam nadzieję że pomogłam
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