Answer:
c = [tex]\frac{-5-d}{2}[/tex]
Step-by-step explanation:
Given
15 = - 3(2c + d) ( divide both sides by - 3 )
- 5 = 2c + d ( subtract d from both sides )
- 5 - d = 2c ( isolate c by dividing both sides by 2 )
[tex]\frac{-5-d}{2}[/tex] = c
The expression that represents c is -(5 + d)/2
The subject of formula is a way of representing variables in terms of other variables
Given the expression
15=-3(2c+d)
Expand the expression in parenthesis
15 = -6c - 3d
Divide both sides by 3
5 = -2c - d
-2c = 5 + d
c = -(5 + d)/2
Hence the expression for c is -(5 + d)/2
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