(03-22-2013, 01:39 AM)Flashdrive Wrote: Also pro-tip

Always keep it in fractions, when you get into next year teachers don't like decimals at all, and it's easier when you get into more complicated stuff than dealing with decimals.

(03-22-2013, 01:42 AM)ABC Wrote: Yea, but this year, our math teacher's been telling us to keep it in decimals. So the answer is basically y= 3.50 right?

(03-22-2013, 01:44 AM)Flashdrive Wrote: Yeah that's the answer, although they just say that because they think it's more confusing. I'd practice with fractions.

Cause once you start doing things like 3 x 3 equations, or 4 x 4 equations I like fractions better.

What you guys are doing is a 2 x 2 equation ( 2 unknowns "x, and y" )

(03-22-2013, 01:46 AM)ABC Wrote: So basically 3x3 and 4x4s are more complex equations, but not run-ons?

(03-22-2013, 01:51 AM)Flashdrive Wrote: A 3 x 3 equation is like.

Code:

2x + 3z = 2y + 4 3z + 2y = 3x x + z + y = 4

Than you'd use elimination method or substitution to solve for it (or matrices which I don't think you've learned) than you have to solve for x, y, and z.

Although don't worry about it it just like the same thing except for you'd solve it differently it takes up like 2/3rds of the page.

(03-22-2013, 02:02 AM)Jinx Wrote: Wow your math is so easy. I miss those days.