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Algebra Basics
Collect like terms by moving them into groups, then substitute numbers into an expression and watch it work out.
Collect like terms
Drag a term into the box below — or just tap it. Like terms have exactly the same letter, so they can be added together. Numbers on their own go in their own group.
Drop terms here
Substitution
Substituting means swapping each letter for its number, then working the sum out.
Test yourself
Simplify the expression by collecting like terms. Type it however you like — 5x+2y-3 and 2y - 3 + 5x both count.