Explications étape par étape:
9x + 3 - 3 = 7 -3
9x = 4
9x÷ 9 =.4÷9
x = 4/9
11x + 8 - 8 = 3 - 8
11x = 3 - 8 = -5
11x ÷ 11 = -5 ÷ 11
x = -5/11
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Explications étape par étape:
9x + 3 - 3 = 7 -3
9x = 4
9x÷ 9 =.4÷9
x = 4/9
11x + 8 - 8 = 3 - 8
11x = 3 - 8 = -5
11x ÷ 11 = -5 ÷ 11
x = -5/11