Вопрос школьника по предмету Русский язык
3x+2y=16 5x-4y=-10 система уравнений решить способом сложения
Ответ учителя по предмету Русский язык
3х + 2у = 16 |*2
5х — 4у = -10
6х + 4у = 32
+
5х — 4у = -10
_____
11х = 22
х = 2
х = 2
3*2 + 2у = 16
х = 2
2у = 10
х = 2
у = 5
ОТВЕТ: (2;5)
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