Question

Which expression is equivalent to

Answer 1

• 
  `\tt A)\: \tt 10 -15c`

Explanation:

`\tt -7c+9-8c+1`

Combine like terms:-

• 
  `\tt (9+1)+ (-7c-8c)`

Simplify:-

• 
  `\tt 10 -15c`

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Hope this helps!