Answer:
23m-18
Step-by-step explanation:
2(7m−5)+(−8+9m)
Remove parenthesis
2(7m-5)-8+9m
expand
14m-10
14m-10-8+9
simplify
Ask me for more questions brainliest please.
8
Substitute 3 for x
-2x + 14
-2(3) + 14
-6 + 14 = 8
21 because I know I answered it
-213.98
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