Вопрос школьника по предмету Математика
выразить x через y y через x
x+y=2 y-6x=1
x-y=4 2y-x=3
Ответ учителя по предмету Математика
Ответ:
x+y=2y-6x=1.
x=-6*2
x=-12
y=12+6
y=18
Ответ x=-12
y=18
x-y=4 2y-x=3
x=4-2
x=2
x=3*2
x=6
y=6*3
y=18
Ответ:x=6
y=18
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