Use the distributive property to expand and factor simple linear expressions.
Expand and simplify
Problem
Expand and simplify: \(2(x~+~3)~+~x\)
Big Picture
What this problem is really about
Use two stages here: first remove the parentheses by multiplying the outside factor by both terms inside, while carrying along the separate x-term. Then scan the expanded expression for like terms. Only the variable terms can merge, so the constant remains in its own category.
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