Question

Решите систему уравнений.
2x+3y=6
3x+5y=8

Answer 1

2х + 3y = 6
2x = 6 - 3y
x = 3 - 1,5y
3x + 5y = 8
3( 3 - 1,5y ) + 5y = 8
9 - 4,5y + 5y = 8
0,5y = - 1
y = - 2
x = 3 + 3 = 6
Ответ ( 6 ; - 2 )

Answer 2

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