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Bogstavregning - VUC Aarhus

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Matematik på AVU<br />

Opgaver til niveau G<br />

Reduktion<br />

14: Hvilke udtryk er ens<br />

a: 4x + 7x<br />

A: 3x<br />

b: x + x + x + x + x<br />

B: 2x<br />

c: 9x − 6x − 2x<br />

C: 11x<br />

d: 5x − 4x + 3x − 2x + x D: 5x<br />

e: 8x − 5x − x<br />

E: x<br />

15: Reducer disse udtryk:<br />

a: 5a + 3a<br />

b: 7 ⋅ b − 2 ⋅ b<br />

c: 2x + x<br />

d: 7y − y<br />

e: c + c<br />

f: 8⋅<br />

u − 3⋅<br />

u − 2 ⋅ u<br />

g: 4z + 2z + 3, 5z<br />

h: 5a − 9a + 2a<br />

i: 1,5b + 2b − b<br />

16: Hvilke udtryk er ens<br />

a: 8a + 7 − 5a + 3<br />

A: 3a + 2<br />

b: a + 1+<br />

a + 1+<br />

a<br />

B: a + 1<br />

c: 9a − 6 − 2a + 4<br />

C: 3a + 10<br />

d: 5a − 4a + 3 − 2<br />

D: 4a + 2<br />

e: 8 − 5a − 6 + 9a<br />

E: 7a − 2<br />

17: Reducer disse udtryk:<br />

a: 2a + 5 + 4a − 3<br />

b: 9b − 6b + 7 − b<br />

c: 3x + 8 + 5x − 7,5<br />

d: 4 + 2y + 12 − y − 8 e: 4 + 2c − 3 + c − 2<br />

f: 2u − 3 − 7u + 5<br />

g: z + 2 + 5,2z − 6<br />

h: 9 ⋅ a + 7 − 6 ⋅ a − 2 ⋅ a i: 2b + 6 − 4b + 5b − 8<br />

<strong>Bogstavregning</strong> Side 78

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