Photos 4 14 4X 3X 6X

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4 14 4x 3x 6x. -(3x+5y)+(7y+7y)=. -3x + 7y = 29 6x + 5у = 13. 3x(х-7)+29=137. Y=15x7+6x5+13 y=0 ОДЗ.
-(3x+5y)+(7y+7y)=. -3x + 7y = 29 6x + 5у = 13. 3x(х-7)+29=137. Y=15x7+6x5+13 y=0 ОДЗ.

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