Bonjour,
a) 4×x + 4×5 = 4x + 20
4 × (x + 5)
b) 3 × 7 - 3 × x = 21 - 3x
3 × (7 - x)
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Bonjour,
a) 4×x + 4×5 = 4x + 20
4 × (x + 5)
b) 3 × 7 - 3 × x = 21 - 3x
3 × (7 - x)