2x+32 = 1 2x = 1-32 2x = -31 x = -15.5
2x+1 = 9 2x = 9-1 2x = 8 x = 4
If: x+1+2x = 1x+5 Then: x = 2
2x + 1 = 9 2x = 9 - 1 2x = 8 2x/2 = 8/2 x=4
X = 0 (zero) Y = -1 (neg 1)
2x + 3y = 9x = 3, y = 1 therefore 6 + 3 = 9
It can be anything. Example: x=1
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 + 5x - 1 = 9x 7x - 1 = 9x -1 = 9x - 7x -1 = 2x -1/2=x
2x+8 = 6 2x = 6-8 2x = -2 x = -1
2x + 2/3= 5/3 2x= 3/3 2x=1 x=1/2
If: x+y = 4 and y = 2x+1 Then: 4-x = 2x+1 => 3 = 3x => 1 = x So by substitution: x = 1 and y = 3