Question

For which of the values of x, RHS = LHS for the given equation 5x - 10 = 0 ?

• A. 1
• B. 2
• C. 3
• D. 0.0

Answer 1

The correct option is B 2

In the given equation,

LHS = 5x - 10
RHS= 0

Using $trialanderrormethod$,

case 1:
putting x = 0,
LHS = $5\times 0$ - 10 = -10
Hence, LHS is not equal to RHS.

case 2:
putting x = 1,
LHS = $5\times 1$ - 10 = -5
Hence, LHS is not equal to RHS.

case 3:
putting x = 2,
LHS = $5\times 2$ - 10 = 0
Hence, LHS is equal to RHS.

case 4:
putting x = 3,
LHS = $5\times 3$ - 10 = 5
Hence, LHS is not equal to RHS.

$\therefore$ For x = 2, LHS = RHS.