Final answer:
To evaluate the expression (6y-13)-(4-7y), distribute the negative sign, combine like terms, and simplify to get 13y-17.
Step-by-step explanation:
To evaluate the expression (6y-13)-(4-7y), we can simplify by removing the parentheses and combining like terms. Start by distributing the negative sign to the terms inside the second set of parentheses:
(6y-13)-4+7y
Next, combine the like terms:
6y+7y-13-4
Combine the y terms, and combine the constant terms:
13y-17
So the simplified expression is 13y-17.
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