2y = 4x + 4y = 2x + 2
You can't solve it. But you can simplify it to get: 4x+y=2
5+4x-7 = 4x+3-x 4x-2 = 3x+3 4x-3x = 3+2 x = 5
2*2+4x-9=0 4x=9-4 4x=5 x=5/4
-4x+3 = 23+6x -4x-6x = 23-3 -10x = 20 x = -2
4x+9 = 7x+3 4x-7x = 3-9 -3x = -6 x = 2
If you would to solve for (l) then l = 4x/2 + 3/2 (4x + 3 is over 2).To solve for x. x = 2l/4 + 3/4 ( 2l + 3 is over 4)Hope this helps.
To solve for 2 unknown variables you need 2 independent equations. You have only 1.
If you can't factor it easily, use the quadratic formula.
You need to organise your question properly. 3x+2y=4 4x + 3y= 7? Is 4 4x = 44x or 4-4x or 4+4x How can there be 2 equal signs in 1 equation?
-4x-2+2=-2+2. -4x/-4=0/-4 x=0