5c-3d+115c−3d+115, c, minus, 3, d, plus, 11 when c=7c=7c, equals, 7 and d=8d=8d, equals, 8.

3 answers

what's with all the repetition, words, etc.?
5c-3d+11 = 5(7)-3(8)+11 = 35-24+11 = ____
he copied/pasted from khan academy
Evaluate 5c-3d+115c−3d+115, c, minus, 3, d, plus, 11 when c=7c=7c, equals, 7 and d=8d=8d, equals, 8.
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