2y = 4x + 4y = 2x + 2
x= -.5
16x+9 without the rest of the equation, what this equals, I can't solve
no 3x2=6 then 4x-15= -60 so 6 added with - 60 = -54
-2x = -4x + 24 -2x + 4x = 24 2x = 24 x = 24/2 x = 12
4x+7-3x = 15 4x-3x = 15-7 x = 8
If: 20x+5y = 15 Then: y = -4x+3
2y = 4x + 4y = 2x + 2
many solutions
4x-1 = 6x-15 4x-6x = 1-15 -2x = -14 x = 7
x + 5 = 4x/3 Solve for x multiply both sides of the equation by 3... 3 * (x + 5) = 3 * (4x/3) 3x + 15 = 4x subtract 3x from both sides of the equation (3x + 15) - 3x = (4x) - 3x 15 = x x = 15
x= -.5
You can't solve it. But you can simplify it to get: 4x+y=2
4x - 7 = 2x + 15 4x = 2x +222x = 22x = 11
If: 4x = x+15 Then: x = 5
4x+9 = 7x+3 4x-7x = 3-9 -3x = -6 x = 2
-4x+3 = 23+6x -4x-6x = 23-3 -10x = 20 x = -2