They are simply finding out what the letter is:)
Unfortunately it is only a GradeD/Level6 ;(
Things to know:
- Remember what ever you are doing on the one side you are doing the opposite on both of the sides. (For Example: if you're adding on the left, you subtract from both, If you are multiplying on the left, you are dividing from both, and vice versa)
Examples
3x+1=13
-1 -1
3x=12
/3 /3 (dividing)
x=4
5x-3=27
+3 +3
5x=30
/5 /5
x=6
x/5+2=37
-2 -2
x/5=35
x5 x5
x=175
Here is 3 questions for you to try :)
1) 2x-3=13
2) 2x+4=10
3)4x-7=29
*Answers I will post in the next maths blog:)
Be sure to comment what you want me to do next :)