Question

ayumen a resolver estos metodos de igualacion
-3x+8y=-34
4x+3y=14

Answer 1

8Y = 3X - 34
Y =(3X - 34)/8

Ahora
4X + 3Y = 14
4X + 3 ( 3X - 34) /8 = 14
4X + ( 9X - 102)/8 = 14
32 X + 9X - 102 = 112
41X = 112 + 102
41X = 214
X= 214/41
X= 5.2195121951
Ahora hallamos Y
Y= (3X - 34)/8
Y= (3(5.2195121951) -34)/8
Y= -2.2926829269
Ahora comprobamos
-3X +8Y = -34
-3(5.2195121951)+8(-2.2926829269)= -34
Esto da
- 15.658536585 - 18.341463415 = - 34
- 34 = - 34