Question

The equation which cannot be solved in integers is ______.

Options

• 5y – 3 = –18

• 3x – 9 = 0

• 3z + 8 = 3 + z

• 9y + 8 = 4y –7

Answer 1

The equation which cannot be solved in integers is 3z + 8 = 3 + z.

Explanation:

Consider the equation 3z + 8 = 3 + z

Transpose 8 to right-hand side then it becomes –8 and z to left-hand side then it becomes –z.

3z – z = 3 – 8

2z = –5

z = `-5/2`