resolver, A) 3 x__ +14 -- 5 =18
B) 9 x __ 2x +3 =10 + 7
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Respuesta:
X¹ = 3
X² = 2
Explicación paso a paso:
3x + 14 - 5 = 18
3x = 18 + 5 - 14
3x = 9
X = 9/3
X = 3
9x - 2x + 3 = 10 + 7
9x - 2x = 10 + 7 - 3
7x = 14
X = 14/7
X = 2