Question

Verify that if x = -3 is a solution of 10x + 7 = 8 – 5x. yes or no?​

Answer 1

Answer:

Taking L.H.S.,

10x + 7

⇒ 10(-3) + 7

⇒ -30 + 7

⇒ -23

Taking R.H.S.,

8 - 5x

⇒ 8 - 5(-3)

⇒ 8 - (-15)

⇒ 8 + 15

⇒ 23

L.H.S ≠ R.H.S

∴ x = (-3) is not the solution for the equation 10x + 7 = 8 – 5x

Answer 2

Answer:

No

Step-by-step explanation:

Your Equation

$10 x + 7 = 8 - 5x$

If X = -3

Then,

$10 -3 + 7 = 8 - 5 - 3$

$=> 7 + 7 = 3 - 3$

$=> 14 = 0$