ok here we go:
5x+2y=7
explain to me how u t=do this cus i dont get this eithr
2007-09-10 10:53:28 · 7 answers · asked by blah! 3 in Science & Mathematics ➔ Mathematics
5x+2y=7
2y = 7 - 5x
y = (7 - 5x)/2
2007-09-10 10:58:31 · answer #1 · answered by Runa 7 · 0⤊ 1⤋
It is a line (it does not have a unique solution).
The "standard" way to write a line equation is
y = mx + c
where m is the slope and c the intercept.
5x + 2y = 7
2y = -5x + 7
y = (-5/2)x + (7/2)
It is a straight line that has a slope of -5/2 (goes down steeply) and crosses the y intercept (where x = 0) at y = 7/2.
2007-09-10 11:01:37 · answer #2 · answered by Raymond 7 · 1⤊ 0⤋
The line equation is derived thus:
5x + 2y = 7
2y = -5x + 7
y = -5/2x + 7/2
Thus the slope is -5/2 and the y-int is 7/2.
2007-09-10 10:58:51 · answer #3 · answered by gebobs 6 · 1⤊ 1⤋
You've written the equation of a line. What do you want to do with it?
We need more info to answer.
Catherine
2007-09-10 10:59:04 · answer #4 · answered by Catherine W 4 · 1⤊ 0⤋
You have a mathematical equation with two unknown, and for solve it you need two mathematical equations. Otherwise it is impossible to be solved.
2007-09-10 11:18:36 · answer #5 · answered by Bernar 3 · 1⤊ 0⤋
you're not stupid for not being able to solve this. only for not realizing you need one more equation, or you'll be able only to solve for one variable in terms of the other.
2007-09-10 10:58:28 · answer #6 · answered by Anonymous · 1⤊ 1⤋
that doesn't make sense....
I'm in advanced algebra!!! wtf is the matter with me!!!
2007-09-10 10:58:03 · answer #7 · answered by i_hate_nicknames 3 · 0⤊ 1⤋