2x+3 = 7 2x = 7-3 2x = 4 x = 2
2x + 1 = 9 2x = 9 - 1 2x = 8 2x/2 = 8/2 x=4
(2,-2)
x = (P - 2W) / 2
If we assume that it equals zero and you wish to solve for x, then the answer is:-x2 + 2x - 3 = 0x2 - 2x + 3 = 0x2 -2x + 1 = -2(x - 1)2 = -2x - 1 = ± √(-2)x = 1 ± i√2
2x+3 = 7 2x = 7-3 2x = 4 x = 2
If: x+1+2x = 1x+5 Then: x = 2
3x - 2 = 2x + 4 3x - 2x = 4 + 2 x = 6
3x-2 = 2x+3 3x-2x = 3+2 x = 5
2x + 1 = 9 2x = 9 - 1 2x = 8 2x/2 = 8/2 x=4
2x+8 = 6 2x = 6-8 2x = -2 x = -1
(2,-2)
2y = 4x + 4y = 2x + 2
x = (P - 2W) / 2
If we assume that it equals zero and you wish to solve for x, then the answer is:-x2 + 2x - 3 = 0x2 - 2x + 3 = 0x2 -2x + 1 = -2(x - 1)2 = -2x - 1 = ± √(-2)x = 1 ± i√2
2x + 7 = 1 Therefore, 2x = -6 x = -6/2 x = -3
you need 2 equations to solve for 2 variables