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Mathematics, 15.07.2019 06:30 masogreene123

If  {5x}^{2} + 6x = 70and  {5x}^{2} - 6y = 10then what is the value of 10x + 10y

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If [tex] {5x}^{2} + 6x = 70[/tex]and [tex] {5x}^{2} - 6y = 10[/tex]then what is the value of [tex]10...
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