How do you simplify $2x+8x$ ?

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Answer 1 · 2016-10-04T12:03:06

$2x+8x=color(green)(10x)$

$color(green)(2color(white)("X") x)"ylonphones" + color(green)(8color(white)("X") x)"ylonphones"=color(green)(10color(white)("X") x)"ylophones"$

How do you simplify 2x+8x2x+8x?