-2 + 2x = -x + 2 + x
Combine like terms on the right side. Notice that [ - x + x ] = 0
-2 + 2x = 2
Add 2 to each side of the equation:
2x = 4
Divide each side by 2:
x = 2
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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