Expressions, Terms & Like TermsATI TEAS 7 cheat sheet

What you can combine

9 key facts 3 practice questions Reviewed Oct 2026

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Vocabulary

An expression has no equals sign; an equation does
A term is separated by + or −
The coefficient is the number in front of the variable

Like Terms

Same variable, same exponent
3x and 5x combine; 3x and 3x² do not
Add the coefficients, keep the variable

Distributing

a(b + c) = ab + ac
−2(x − 4) = −2x + 8 — the sign distributes too

Evaluating

Substitute the value, then follow order of operations

Key takeaway

What you can combine

Before you read

Test yourself first: 3 questions

Question 1 of 3

Simplify the ratio 15:20 to lowest terms.

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