Hi there!
Great question! :D
To figure out our unknown value, we can replace our unknown value, or blank space, with x.
So our equation would look something like [tex]4x = 30[/tex]
We have a variable next to a number to show we are multiplying. But since we're figuring out an unknown, we'll do the opposite, which is division.
[tex]4x = 30[/tex]
We'll divide both sides by our 4.
[tex] \frac{4x}{4} = \frac{30}{4} [/tex]
We can eliminate the variable right away on our left side of our equation. This makes it look like there's not a lot of steps through solving.
[tex] \frac{30}{4} = 7.5[/tex]
Final answer:
[tex]x = 7.5[/tex]
When in doubt of your answer, we can multiply 4 by 7.5 and see what we get. We should get 30.
[tex]4 * 7.5 = 30 :)[/tex]
We were right!
Hope this helps! :D
