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How do you simplify $2 x + 5 x$ $2x+5x$ ?

1 Answer

Jun 6, 2015

$2 x + 5 x = (2 + 5) x = 7 x$ $2x+5x = (2+5)x = 7x$

using right distributivity, that is:

$a c + b c = (a + b) c$ $ac+bc = (a+b)c$

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