Question

Which of the following expression is equivalent to 7 y + 21 y(7+21) 7(y+21). 7(y+3. 21y+7

Answer 1

The expression given is;

`\begin{gathered} 7y+21 \\ \text{The equivalent is;} \\ =7(y+3) \\ We\text{ use 7 to factor both sides of the expression, hence} \\ (7y)/(7)=y \\ \text{And} \\ (21)/(7)=3 \\ \text{Therefore, the answer is } \\ 7(y+3) \end{gathered}`

The correct answer is option C