Question

1)
What is the value of x when x - 7 = 21?

Answer 1

Answer:

x=28

Step-by-step explanation:

1. Write the equation. x-7=21
2. Isolate the variable. Add 7 to both sides to cancel out the seven on the left. x=28
3. Check your answer. Plug in 28 in the original equation. 28-7=21 becomes 21=21

Answer is correct!

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Answer 2

Answer:

The value of x is 28.

Step-by-step explanation:

In context to the question asked,

We have to find the value of x,

As per data given in the question,

We have,

$x - 7 = 21$

Here, we have to use the transposition method:

On transposing 7 on the right side,

=> $x =21 + 7$

Add the numbers,

=> $x = 28$

Hence, the required solution is 28.