eloinamduran eloinamduran

22-01-2021
Mathematics

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the0ldkid the0ldkid

22-01-2021

Answer:

[tex]7x + y = 19 \\ 4x + y = 16 \\ so \: \\ 7x + y = 19 \\ - 4x - y = - 16 \\ 3x = 3 \\ x = 1[/tex]

[tex]7(1) + y = 19 \\ y = 12[/tex]

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