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If C = s − 5 C=s−5 and D = s − 8 , D=s−8, find an expression
Question
If
C
=
s
−
5
C=s−5 and
D
=
s
−
8
,
D=s−8, find an expression that equals
C
+
2
D
C+2D in standard form.
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Mathematics
4 years
2021-08-23T22:52:08+00:00
2021-08-23T22:52:08+00:00 1 Answers
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Answer:
C +2D = 3s -21
Step-by-step explanation:
Use the substitution property of equality.
C = s -5
D = s -8
Then the value of your expression is …
C +2D = (s -5) +2(s -8)
= s -5 +2s -16
C +2D = 3s -21