Answer:
b = C - 15
a
Step-by-step explanation:
C = 15 + ab
C - 15 = ab
a a
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[tex]C = 15 + ab[/tex]
Subtract sides 15
[tex]C - 15 = - 15 + 15 + ab[/tex]
[tex]C - 15 = ab[/tex]
Divided sides by a
[tex] \frac{C - 15}{a} = \frac{a \times b}{a} \\ [/tex]
[tex] \frac{C - 15}{a} = b \\ [/tex]
[tex]b = \frac{C - 15}{a} \\ [/tex]
Done....
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