Http://mathsfirst.massey.ac.nz/Algebra/SystemsofLinEq/EMeth.htm this website explains it well
Answer:
are you looking for example?
Step-by-step explanation:
If so,
X + 3 = 7
6x-12
Combine 2x and 4x = 6x
Combine -17 and 5 = -12
Answer:
The larger number is 96.
Step-by-step explanation:

So 4x^2+-2x+-6 then multiply by 5 would be the Area of the entire rectangle using the formula A=bh
You'll get 4x^2 − 2x − 6