Question

ecuaciones por igualacion 5x+6y=10 4x-3y=23

Answer 1

5x + 6y = 20: Ecuacion 1
4X - 3Y = -23: Ecuacion 2
En ecuacion 1:
5X = 20 - 6Y 
X = (20 - 6Y)/5
En ecuacion 2:
4X - 3Y = -23
4X = 3Y - 23
X = (3Y - 23)/4
X = X:
X = (20 - 6Y)/5
X = (3Y - 23)/4
(20 - 6Y)/5 = (3Y - 23)/4
4(20 - 6Y) = 5(3Y - 23)
80 - 24Y = 15Y - 115
80 + 115 = 15Y + 24Y
195 = 39Y
Y = 195/39
Y = 5
Ahora Reemplazo el valor de Y en: X = (20 - 6Y)/5
X = [20 - 6(5)]/5
X = [20 - 30]/5
X = -10/5
X = -2
Rta: X = -2; Y = 5

Answer 2

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