Maths No:2

Maths:

I have been learning about Algebra and how to compare decimals/fractions into Algebra equations
For an example:
(2=Y )(3=X)
1.2+Y+2/4=1.9
especially using perimeter and area measurements those letters can be used as measurement symbols
for an example:
X=9 and N=12
X=the same as two parallel lines so each bottom and top line would be the  same measured number.
the parallel lines would be the same but the other angled lines would be longer so they would be called and lined out as the letter N for 12 and X would be 9 so you would measure them out and you would have N for 12cm and X for 9cm so you would add them like this.
(N+X)=(12+9)so Ncm+Xcm=17 then times it by two to match the right answer.so the
answer would be 34cm because 12+9x2=34 this is how i worked it out.
easy 12+9=17 Right so take that 17 and times it by two and there is your answer.