Linear Equation

Q. Solve for $x$:
$\frac{3}{x+1}-\frac{2}{x-1}=\frac{5}{x^2-1}$

1. 9
2. 10
3. 12
4. 8

Q. If the tens digit is twice the units digit in the number 'ab'. Choose the correct option.

1. a = 2b
2. b = 2a
3. a = b
4. a = 0.2 b

Q. Which of the following equation is a linear equation in one variable?

1. 2x + 3y = 10
2. 2x = 3x + 4
3. 2x = 3y + 4
4. 2x + 4z = 5

Q. Which of the following equation is a linear equation in one variable?

1. 2x + 3y = 10
2. 2x = 3x + 4
3. 2x + 4z = 5
4. 2x = 3y + 4

Q.

If 9 is the solution of variable x in the equation $\frac{5x-7}{2}=y,$then the value of y is ______.

1. 19
2. 16
3. 12
4. 17

Q. The value of x in the equation 5x = 5 is 5.

1. True
2. False

Q.

Which of the following equation(s) is/are linear equation(s) in one variable?

1. 2x + 3y = 10

2. 4a + 3b = 3b + 6

3. 2x = 3x + 4

4. 2x + 4z = 5

Q. The total number of variables in the equation 3a + b + 6ab = 0 is 2.

1. False
2. True

Q.

The average of three numbers is their sum multiplied by 3.

1. True

2. False

Q. Which of the following equation is a linear equation in one variable?

1. 2x + 3y = 10
2. 2x = 3x + 4
3. 2x = 3y + 4
4. 2x + 4z = 5