Q15 of 107 Page 104

Which of the following equations cannot be formed using the equation x = 7?

We have, x = 7

On multiplying both the sides by 7, we get

⇒ 7 × x = 7 × 7

⇒ 7x = 49

On adding (–1) both sides, we get

7x + (–1) = 49 + (–1)

⇒ 7x – 1 = 49 – 1

⇒ 7x – 1 = 48

The equation having – 3 as a solution is:

Which of the following equations can be formed starting with x = 0?

If = 3, then the value of 3x + 2 is

Which of the following numbers satisfy the equation –6 + x = –12?