Question

4х-2у=2

2х+у=5 система уравнений

Answer 1

4х-2у=2

2х+у=5

 

y= 5 - 2x

4x - 2( 5 - 2x) - 2=0

4x - 10+4x -2=0

8x - 12=0

8x= 12

x=1.5