bonjour
A = 1 + 2 - x
= - x + 3
B = 2 x - 4 + 5 x - 6
= 7 x - 10
C = 2.6 x + 4 - 7 x
= - 4.4 x + 4
D = 7 - 3 x + 2.4 x - 5
= - 0.6 x + 2
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bonjour
A = 1 + 2 - x
= - x + 3
B = 2 x - 4 + 5 x - 6
= 7 x - 10
C = 2.6 x + 4 - 7 x
= - 4.4 x + 4
D = 7 - 3 x + 2.4 x - 5
= - 0.6 x + 2