Explications étape par étape:
ex44.
a) 15 - 10x = -4x - 1
15 + 1 = -4x + 10x
16 = 6x
x = 16/6 = 8/3
b) -3 - 14x - 14 = - 4 - 4x
-14x - 17 = -4 - 4x
-17 + 4 = -4x + 14x
-13 = 10x
x = -13/10
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Explications étape par étape:
ex44.
a) 15 - 10x = -4x - 1
15 + 1 = -4x + 10x
16 = 6x
x = 16/6 = 8/3
b) -3 - 14x - 14 = - 4 - 4x
-14x - 17 = -4 - 4x
-17 + 4 = -4x + 14x
-13 = 10x
x = -13/10