2x - y = 4
2x - y = 3
2007-02-01 14:03:11 · 5 answers · asked by tray j 1 in Science & Mathematics ➔ Mathematics
Get one of the variables (letters) by itself on one side and then substitute it's value in the other equation.
2x-y = 4 Add y to each side.
2x = 4 + y Divide by two
x = (4 + y)/2
Now substitute for x in the second equation.
2x - y = 3 becomes
2(4 + y)/2 - y = 3 The two's cancel each other out.
(4 + y) - y= 3
4 = 3 That can't happen so one of your equations is incorrect.
2007-02-01 14:09:33 · answer #1 · answered by Anonymous · 0⤊ 0⤋
These two lines do not intersect. They are parallel. There is no common solution of the two equations.
2007-02-01 22:06:46 · answer #2 · answered by anonimous 6 · 0⤊ 0⤋
just looking at these two equations, you can tell there is no solution.
the left sides of the equal signs are identical therefore the right sides would have to be identical. since they aren't, there is no solution
2007-02-01 22:08:07 · answer #3 · answered by Anonymous · 1⤊ 0⤋
there's no point of intersection, these lines are parallel. thus there's no solution
2007-02-02 02:45:09 · answer #4 · answered by Anonymous · 0⤊ 0⤋
There is no solution!!!!
2007-02-01 22:06:49 · answer #5 · answered by Anonymous · 1⤊ 0⤋