jennyvar27 jennyvar27

23-02-2022
Mathematics

contestada

¿Cuál es el valor de x del siguiente sistema de ecuaciones simultáneas? 2x + y = 7 5x - 3y = 1

Respuesta :

kyakya1124 kyakya1124

23-02-2022

Answer:

2x+y=7

5x-3y=1

we do reduction.

3(2x+y=7)............6x+3y=21

5x-3y=1............... 5x-3y=1

11x=22.......x=22/11.............. x=2

if x=2

2x+y=7

2(2)+y=7

4 +y=7

y=7-4

y=3

solution:

x=2 y=3

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