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RAZONAMIENTO MATEMÁTICO
EVALUACIÓN N°6
Nombre y Apellido:…..………………………………………………………………...
Encuentre el valor de la incógnita x en las siguientes expresiones:
1) 54 + 𝑥 = 54 + 26
𝒙 = ____
2) 7𝑥 + 21 = 8𝑥 − 12
𝒙 = ____
3) 8𝑥 + 9 − 12𝑥 = 4𝑥 − 13 − 5𝑥
𝒙 = ____
4) 2(3𝑥 − 1) − (𝑥 + 2) = 4(𝑥 + 1)
𝒙 = ____
5) 5𝑥 = 8𝑥 − 15
𝒙 = ____
6) 9𝑥 − 5 = 3(𝑥 − 2) + 13
𝒙 = ____
7) 2𝑥 − 5 = −𝑥 − 2
𝒙 = ____
8) 2(3𝑥 − 2) = 2
𝒙 = ____
9) 2𝑥 + 5 = 19
𝒙 = ____
10) 7𝑥 + 21 = 8𝑥 − 12
𝒙 = ____

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Solución de ecuaciones matemáticas

  • 1. RAZONAMIENTO MATEMÁTICO EVALUACIÓN N°6 Nombre y Apellido:…..………………………………………………………………... Encuentre el valor de la incógnita x en las siguientes expresiones: 1) 54 + 𝑥 = 54 + 26 𝒙 = ____ 2) 7𝑥 + 21 = 8𝑥 − 12 𝒙 = ____ 3) 8𝑥 + 9 − 12𝑥 = 4𝑥 − 13 − 5𝑥 𝒙 = ____ 4) 2(3𝑥 − 1) − (𝑥 + 2) = 4(𝑥 + 1) 𝒙 = ____ 5) 5𝑥 = 8𝑥 − 15 𝒙 = ____ 6) 9𝑥 − 5 = 3(𝑥 − 2) + 13 𝒙 = ____ 7) 2𝑥 − 5 = −𝑥 − 2 𝒙 = ____ 8) 2(3𝑥 − 2) = 2 𝒙 = ____ 9) 2𝑥 + 5 = 19 𝒙 = ____ 10) 7𝑥 + 21 = 8𝑥 − 12 𝒙 = ____