8 + 2(10 - r) = 8 + 20 - 2r = 28 - 2r
Ur image is kinda cut off
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5a+2a(5−b)
Distribute:
=5a+(2a)(5)+(2a)(−b)
=5a+10a+−2ab
Combine Like Terms:
=5a+10a+−2ab
=(−2ab)+(5a+10a)
=−2ab+15a
