Question

Given the equation 3x + 15 =8b +c
Make c the subject of the formula
calculate the value of c if x =5 and b =16

Answer 1

Answer:

$given \: equcation \: 3x + 15 = 8b + c \\ 3x + 15 - 8b = c \\ given \: x = 5 \: and \: b = 16 \\ subtistude \: their \: values \: in \: given \: equcation \: \\ 3(5) + 15 - 8(16) = c \\ c = 15 + 15 - 128 \\ c = 30 - 128 \\ c = - 98$

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Answer 2

Answer:

C=-98

Explanation:

3(5)+15=8(16)+c

=15+15=128+c

=30=128+c

=30-128=c

=C=-98