Question

C. For which value of x in the expression 2x - 8 equals to 4x + 10?​

Answer 1

Step-by-step explanation:

Expression given 3x−4 and 2x+1 are equal,

Then 2x−8=4x+10

4x−2x=-18 [Transposing 2x to LHS and −4 to RHS]

x=-9

Hence, the value of x is -9.

Answer 2

Answer:

Question :-

For which value of x in the expression 2x - 8 equals to 4x + 10?

Required Answer :-

-9

Solution :-

$2x - 8 = 4x + 10$

$2x - 4x = 10 + 8$

$- 2x = 18$

$x = \frac{18}{ - 2}$

$x = \frac{ 1\cancel8}{ - \cancel2}$

$x = \frac{9}{ - 1}$

$x = - 9$

Verification :-

To verify, substitute x = -9 in 2x -8 = 4x + 10

$2x -8 = 4x +10$

$2 \times (- 9) - 8 = 4 \times ( - 9) + 10$

$- 18 - 8 = - 36 + 10$

$- 26 = - 26$

$\bf\small{LHS = RHS}$

$\bf \small{Hence \: verified ! }$