Question

Repedeeee, vă roooog!
2x + y = 5
1-2x+y=1
​

Answer 1

x=2,5

y=1,25

Explicație pas cu pas:

y=5-2x. | y=5-2x. | y=5-2x | y=5-2x | y=5-2×1,25 |

1-2x+5-2x=1 | -4x=1-1-5 | -4x=-5 | x=-5/-4 | x=1,25. |