It simplifies to: 12 -6x
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It's an equation.Here's the solution:3x = x + 62x = 6x = 3
3x + 2y = 62x + 3y = -1You can use substition, elimation, or graphing to solve this system, but I prefer to use matrices. They are difficult to type out, but the answer is x = 4 and y = -3.
2x - 3y = 62x = 3y + 63y = 2x - 6y = (2x - 6)/3y = (2/3)x - 2
let width be xlength will be 2x..6 is decreased from bothx-62x-62x^2-(x-6)(2x-6)= 1082x^2-(2x^2-6x-12x+36)=1082x^2-2x^2+18x-36=10818x=108+3618x=144x=144/18x=8 which is the widthLength = 2x = 16 units
6x12=72+654=726+555= 1281