Question

Решите систему уравнений.
3x+y=2
2x-8y=10

Answer 1

y=2-3x
2x-8y=10

2x-8*(2-3x)=10
2x-16+24x=10
26x=26
x=1
y=-1

Answer 2

3x + y = 2 ( • 8 )
24x + 8y = 16
2x - 8y = 10
26x = 26
x = 1
3 + y = 2
y = - 1
Ответ ( 1 ; - 1 )