Mathematics, 06.09.2021 18:40 MariaGuerra

1)Which of these is a linear equation involving two variables:a) 7x+3y+4z = 20 b) 6x+2y = 10 c) 8x = 2+10 d) 7a+8b+9c = 10+5

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1)Which of these is a linear equation involving two variables:a) 7x+3y+4z = 20 b) 6x+2y = 10 c) 8x =...

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