Question

solve the equation by trial– and– error method 5x =2x +9​

Answer 1

$5x = 2x + 9$

$5x - 2x = 9$

$3x = 9$

$x = \frac{9}{3}$

$x = 3$

By trial n error method,

Let the value of x be 1

$5x - 2x = 9$

$3x = 9$

$3(1) \: is \: not \: equal \: to \: 9$

Hence x ≠ 1

Let the value of x be 3

$5x - 2x = 9$

$3x = 9$

$3(3) = 9$

$9 = 9$

Hence, The value of x is 3

Thnx✌️✌️

Answer 2

$5x = 2x + 9$

$5x - 2x = 9$

$3x = 9$

$x = \frac{9}{3}$

$x = 3$

Thnx ✌️✌️