Question

How do you evaluate $4x=20$?

Answer 1

Hint: The given equation is pretty easy. By the use of simple operations like multiplication or division, you can find the result that is the value of variable x for the required question. So, let’s see what will be the approach for the given equation.

Complete Step by Step Solution:
The given equation is $4x=20$.
Now, we need to divide both sides by 4, which means, we get,
$\Rightarrow \dfrac{4x}{4}=\dfrac{20}{4}$
When we simplify the above equation that means, on the left-hand side both the 4 in the numerator and denominator cancel out, and on the right-hand side we will simply divide, so we get,
$\Rightarrow \dfrac{\not{4}x}{{\not{4}}}=5$
Now, as we can see above both the 4 cancels out in the numerator and denominator in the left-hand side, which means, we get,
$\Rightarrow x=5$

Therefore, after the evaluation of the equation, we get the value of x is 5.

Note:
There is an alternative way for the given equation and it is pretty easy and can be evaluated with fewer steps.
So, the given equation is $4x=20$.
To evaluate you just need to move the 4 from the left-hand side to the right-hand side and hence 4 will be transformed to the division form as it was multiplied with x in the left-hand side, that means, we get,
$\Rightarrow x=\dfrac{20}{4}$
When we simplify it, we get,
$\Rightarrow x=5$
Therefore, after the evaluation of the equation, we get the value of x is 5.