Question

slove the following equation and check your result.
a. 2x-9=11​

Answer 1

Answer:

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Step-by-step explanation:

2x - 9 = 11

⇒ 2x = 11 + 9

⇒ 2x = 20

⇒ x = 20/2

⇒ x = 10

∴ x = 10

Answer 2

Answer:

Required value of x is 10

Step-by-step explanation:

2x - 9 = 11

⇒2x = 11 + 9       [Using rule of transposition]

⇒2x = 20

⇒x = 20/2

⇒x = 10

Check Your answer:

Now, answer for x is 10, substitute this value in the original equation to check answer is correct or not:

2x - 9 = 11

⇒2 × 10 - 9 = 11

⇒20 - 9 = 11

⇒11 = 11

So, answer x = 10 is correct.

∴ Required value of x is 10

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