Question

4x = 20
How can I solve it quickly?
I don’t want only the results.

Answer 1

5

Explanation:

You need to do 4 divided by 4 on 1 side and 20 divided by 4 on the other side

4÷4= 1 so we are left with x

20÷4= 5 so we are left with 5

Therefore x=5

Answer 2

Hi student, let me help you out!

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We are asked to solve the equation 4x=20.

`\triangle~\fbox{\bf{KEY:}}`

• Remember, we need to get x all by itself.

Is x all by itself? No, there's a 4 multiplied by it.

So, we do the opposite operation.

The opposite of multiplication is..?

Division.

Thus, we divide both sides by 4.

x=5

`\ddot\bigstar` Remember this...

`\fbox{When\;solving\;equations\;,\;our\;goal\;is\;to\;find\;the\;value\;of\;the\;variable,\;which\;in\;this\;case\;was\;x}`

Hope it helps you out! :D

Ask in comments if any queries arise.

~Just a smiley person helping fellow students :)