1. (3x-4)-(3+x)=3x-4-3-x=2x-7
2. (4x-2)-(3x+4)=4x-2-3x-4=x-6
3. - 2x-(4-x)+2= -2x-4+x+2= - x-2
4. 7(a-b)+a-7b=7a-7b+a-7b=8a-14b
5. 4(x-y)-3y-2(y-x)+x=4x-4y-3y-2y+2x=6x-7y
6. - 2(4x+9)= -8x-18
Podstawiamy
-8-3-18= - 29
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1. (3x-4)-(3+x)=3x-4-3-x=2x-7
2. (4x-2)-(3x+4)=4x-2-3x-4=x-6
3. - 2x-(4-x)+2= -2x-4+x+2= - x-2
4. 7(a-b)+a-7b=7a-7b+a-7b=8a-14b
5. 4(x-y)-3y-2(y-x)+x=4x-4y-3y-2y+2x=6x-7y
6. - 2(4x+9)= -8x-18
Podstawiamy
-8-3-18= - 29