7a-12
Explanation:
Given the expressions as :
-3a+15-2+5(2a-5)
open brackets
-3a + 15-2+10a-25
collect the like terms
-3a+10a+15-2-25
7a-12
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Collecting like terms and simplifying:https://brainly.com/question/11995463
Keywords: expression, equivalent
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