MCQ
The root of the equation $2y = 5 (7 - y )$ is:
- ✓$5$
- B$-5$
- C$3$
- D$-3$
✓
Answer
Correct option: A.
$5$
$2\text{y} = 5(\text{7} - \text{y})$
$\Rightarrow2\text{y} = 35 - 5\text{y} $
$\Rightarrow2\text{y} + 5\text{y}= 35$
$\Rightarrow\text{7y = 35 }\Rightarrow\text{y}= - \frac{35}{7}= 5$
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