Lettervormen distributiviteit

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Bereken

1. \(-3(3x+1)\)
2. \(-4(-7p+1)\)
3. \(-(-6p-2)\)
4. \(+(-p-q-3)\)
5. \(-2(x-y+3)\)
6. \(+(-7a-2)\)
7. \(3(5y-1)\)
8. \(2(-2b-1)\)
9. \(2(-5b-2)\)
10. \(+(x-4y-2)\)
11. \(-3(8p+1)\)
12. \(-(-x-4y-2)\)

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Bereken

Verbetersleutel

1. \(-3(3x+1)=-9x-3\)
2. \(-4(-7p+1)=28p-4\)
3. \(-(-6p-2)=6p+2\)
4. \(+(-p-q-3)=-p-q-3\)
5. \(-2(x-y+3)=-2x+2y-6\)
6. \(+(-7a-2)=-7a-2\)
7. \(3(5y-1)=15y-3\)
8. \(2(-2b-1)=-4b-2\)
9. \(2(-5b-2)=-10b-4\)
10. \(+(x-4y-2)=x-4y-2\)
11. \(-3(8p+1)=-24p-3\)
12. \(-(-x-4y-2)=x+4y+2\)