x=0.15 y=3.8 :D
Объяснение:
2x-y=10x-5
-y=10x-2x-5
-y=8x-5
y=5-8x
5y=19
5(5-8x)=19
25-40x=19
-40x=19-25
-40x=-6
x=6/40
x=3/20=0.15
y=5-8*0.15
y=5-1.2=3.8
x=0.15 y=3.8 :D
Объяснение:
2x-y=10x-5
-y=10x-2x-5
-y=8x-5
y=5-8x
5y=19
5(5-8x)=19
25-40x=19
-40x=19-25
-40x=-6
x=6/40
x=3/20=0.15
y=5-8*0.15
y=5-1.2=3.8