NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 7: Algebra - True or False Questions
Question 52

Question. 52

x = 5 is the solution of the equation 3x + 2 = 20

Answer:

true

Detailed Answer with Explanation:

Check the given value x = 5

Start with the left side: \(3x + 2\)

Put \(x = 5\): \(3(5) + 2\)

Multiply: \(3 \times 5 = 15\)

Add: \(15 + 2 = 17\)

Compare: \(17 \neq 20\)

So, \(x = 5\) is not a solution. The statement is false.

Find the correct solution (optional clarity)

Start with: \(3x + 2 = 20\)

Subtract 2 from both sides: \(3x = 18\)

Divide both sides by 3: \(x = 6\)

Check: \(3(6) + 2 = 18 + 2 = 20\) ✓

NCERT Exemplar Solutions Class 6 – Mathematics – Unit 7: Algebra – True or False Questions | Detailed Answers