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om at regne med variable
hvad er det dobbelte af
om at opskrive bogstavudtryk med variable
100
reducer : 2a + 5a - 3a + 6a - 4a
What is 6a
100
3a
What is 6a
100
4 elever + 9 elever - 2 elever
What is 4e + 9e - 2e = 11e
200
reducer 2,5c + 6c + 5,3c - 2,8c + c
What is 12c
200
2x - 5
What is 4x - 10
200
9 elever - 1 lærer + 7 elever + 2 lærere
What is 9e - l + 7e + 2 l = 16e + l
300
reducer 2 gange 3c - 4d + 2,5 - 3c + d
What is 3c - 3d + 2,5
300
1/2 ( 4 + 2x)
What is 2 + x
300
spillere og trænere
What is s + p
400
reducer 1/2q + 2 gange 3p - 1,5q - 2p + 3q
What is 2q + 4p
400
5 - 4 x
What is 10 - 8x
400
Halvdelen af 4 elever + 8 lærere
What is 1/2 (4e + 8l) = 2e + 4l
500
reducer 2(3x + 4) - 2x - 8
What is 4x
500
6 - 2x
What is 12 - 4 x
500
6 pædagoger + 20 børn gange 3
What is 6p + 60b