NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 4: Simple Equations - True or False QuestionsQuestion 55
Class 7 - Mathematics - Unit 4: Simple Equations - True or False Questions
Question. 55
If 9 is the solution of variable x in the equation \(\dfrac{5x − 7}{2} = y\), then the value of y is 28.
Answer:
false
Detailed Answer with Explanation:
For x = 9: \(y = (5(9) − 7)/2 = (45 − 7)/2 = 38/2 = 19\), not 28.