Final answer:
LIKE terms in the expression 7a + 4b + 1 are 7a and 4b.
Step-by-step explanation:
The LIKE terms in the expression 7a + 4b + 1 are 7a and 4b. LIKE terms are terms that have the same variable(s) raised to the same power(s). In this case, both 7a and 4b have the variable 'a' and 'b' respectively, so they are LIKE terms.
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